Engineering / Pre-Med / Business Application Differences

Published on May 14, 2026

Every August, the most common question I hear from parents is: "My son is interested in CS, Engineering, and Business. Which one is easier for getting into the Ivy League?"

My answer is always: "It is not about which one is 'easier'; it is that the preparation logic is completely different. CS requires Olympiad + Open Source; Pre-Med requires Research + hospital shadowing; Business requires startup + finance internship. If you choose the wrong major direction, all preparation starting in 10th grade may be wasted."

This article uses my 15 years of hands-on experience to break down the full strategy for these 3 major tracks.

1. The Essential Differences Among the 3 Major Tracks

1.1 Academic Depth vs. Breadth

1.2 Differences in Application Thresholds

The truth: CS Top 20 is the most competitive -> the standardized testing and EC thresholds are the highest.

2. CS / Engineering Application Strategy

2.1 Standardized Testing Preparation

• SAT Math must be 780+ (ideally 800)
• SAT Reading should be at least 750+ (CS also requires strong English ability)
• AP Calculus BC, Physics C Mechanics, and CS A are required
• 7-10 AP scores of 5

2.2 EC Core: Building a Spike

CS applicants must have a strong spike:

2.3 Essay Strategy

A CS PS must show the story of "why CS / how I started coding" + concrete technical details:

✓ Strong opening: "My recursion function returned -2,147,483,648. I had just discovered integer overflow, and I was eight."

✗ Weak opening: "I have always been passionate about CS."

2.4 5 Key Strategies for Applying to Top CS Schools

1. Do not apply as an "Undeclared Major" -> apply directly to CS Specific programs (especially Cornell and CMU)
2. Prepare a strong answer for "why this school's CS": MIT's AI Lab, Stanford's Hennessy series, CMU's SCS
3. Research with PI for 1+ year: do real research in a university lab
4. Have at least 1 GitHub project with 100+ stars: demonstrate real building ability
5. Olympiad / competition awards serve as quality signals

For more details on Top 10 CS schools, see "CS Top 10 School Selection".

3. Pre-Med Application Strategy

3.1 Pre-Med Is Not a "Major"; It Is a Pathway

Important concept: U.S. undergraduate colleges do not have a Pre-Med major. Pre-Med is a track for students who intend to apply to medical school in the future. Your undergraduate major can be Biology, Chemistry, Biochemistry, Psychology, or even Humanities.

As long as you complete the medical school prerequisite courses (Bio, Chem, Physics, Math, Psychology), maintain a strong GPA, and earn a strong MCAT score, you can apply to medical school.

3.2 Standardized Testing Preparation

• SAT 1500+
• AP Biology, Chemistry, Physics, and Calculus AB / BC with at least 5s
• AP Psychology (strongly recommended, commonly used for medical school preparation)
• AP Statistics (commonly used for medical school preparation)

3.3 EC Core: Research + Shadowing + Service

Pre-Med ECs must include the "4 core elements":

3.4 BS/MD 7-Year Programs

Some schools offer BS/MD 7-Year Programs (3 years of undergraduate study + 4 years of medical school), guaranteeing medical school admission at the time of college admission:

Applying to BS/MD: SAT 1530+, GPA 4.0, and ECs must be extremely strong in the Pre-Med direction.

3.5 5 Key Strategies for Applying to Top Pre-Med Schools

1. Your undergraduate major does not have to be Bio; you can choose any major, including humanities
2. GPA > 3.9 is the baseline; medical school applications focus on BCPM (Biology + Chem + Physics + Math) GPA
3. Prepare for the MCAT in junior year of college; it is not taken during undergraduate admissions
4. College selection matters: Johns Hopkins / WUSTL / Duke / Stanford / UCLA / UCB have the strongest Pre-Med resources
5. Research and PI relationship: strong medical school recommendation letters often come from the PI

4. Business Application Strategy

4.1 The Difference Between Undergraduate Business and Master MBA

Undergraduate Business: applying to undergraduate business schools such as Wharton / Stern / Ross / Haas Master MBA: graduate-level study, usually applied to after 3-5 years of work experience

The two are completely different. Undergraduate Business evaluates your "business awareness at age 18"; MBA evaluates your "impact after 5 years of work".

4.2 Standardized Testing Preparation

• SAT 1480+
• Math 750+ (business has high math expectations)
• AP Macro / Micro Economics, both 5s
• AP Calculus AB / BC 5
• AP Statistics 5

4.3 EC Core: Real-World Experience + Leadership

Business ECs should include the "3 core elements":

4.4 Top Undergraduate Business Schools

4.5 Special Features of Business Applications

The truth: Competition for top business schools can be more intense than the same university's General Admission. Wharton's admit rate is around 6%, while UPenn overall is 5.8%.

5. Cross-Major "Spike Triangulation"

No matter which major track you choose, your spike must be triangulated:

5.1 CS Spike Example

All 3 elements point to CS -> the AO sees a "real CS spike".

5.2 Pre-Med Spike Example

5.3 Business Spike Example

6. Common "Bad Combinations" Across the 3 Major Tracks

6.1 Applying to CS with ECs in Math Olympiad

Many Taiwanese students are strong in Math -> pursue Math Olympiad -> want to apply to CS. Wrong: Math Olympiad does not equal a CS spike.

Solution: Math is the base, but CS applications still require USACO / programming projects.

6.2 Applying to Pre-Med with Only AP Bio 5

Many students want Pre-Med but only take AP Bio, with no Chem / Physics. When medical schools see a Pre-Med direction but missing core prerequisites, the student is immediately out.

Solution: Earn 5s in all 4 core Pre-Med APs (Bio, Chem, Physics, Calc).

6.3 Applying to Business with No Real-World Experience

Many students want Wharton, but all their ECs are academic (Olympiad, research). Wharton sees "no business sense" and rejects them directly.

Solution: Have at least 1 internship / startup / family business experience.

7. Essay Angles for the 3 Major Tracks

7.1 CS Essay

Why this major: a technical epiphany story: the specific scene when you first wrote code at age 8 / 11 / 14.

7.2 Pre-Med Essay

Why this major: a service epiphany story: a specific patient, nurse, or community healthcare event you witnessed. Avoid: "My grandmother passed away, so I want to become a doctor" (too common).

7.3 Business Essay

Why this major: a business epiphany story: a market gap you noticed, the legacy of a family business, or a business-based solution to a social problem.

8. Standardized Score Comparison Across the 3 Major Tracks

For Top 10 applications:

For Top 20 applications:

9. Differences in Internal Major Application Processes

9.1 Direct Admit to Major

Some schools decide the major at the time of application:

Strategy: Applying to Cornell or UMich CS means you must apply to CS from the start. Transferring into CS later is extremely difficult.

9.2 Declaring in Sophomore / Junior Year

Some schools require students to declare in year 2-3:

The truth: The "internal competition" at Stanford / UC Berkeley can be even more intense than the original admissions competition.

10. Post-Graduation Paths for the 3 Major Tracks

10.1 CS / Engineering

10.2 Pre-Med

10.3 Business

11. Fit for Taiwanese Families Across the 3 Major Tracks

Most commonly pushed by Taiwanese families: CS, Engineering, Pre-Med Less commonly pushed by Taiwanese families: Business (less familiar + unclear path)

12. Conclusion: Choosing the Right Major Matters More Than Choosing the Right School

Over the past 15 years, I have seen too many parents assume they can "get into a top school first, then switch majors". That is wrong. Switching into CS after entering a top school is harder than applying directly to CS at the time of admission (internal competition + GPA thresholds).

My final advice to Dr. G. students:

Decide your major direction by 10th grade. This affects all your course selection, ECs, essays, and recommender choices from grades 9-12.

CS -> pursue USACO + GitHubPre-Med -> pursue Hospital volunteer + ResearchBusiness -> pursue startup + leadership

Choose the right major direction, and your 4 years starting in 10th grade can triangulate into a strong spike. Choose the wrong major, and all your effort may be seen by the AO as "broad but shallow".

Further Reading:

• CS Top 10 School Selection
• Business School Picks
• Engineering / Business / Pre-Med School Selection Differences
• AP Course Selection Strategy
• How to Write the 10 Common App Activities Section Entries