Here's my opinion (as someone who recently finished grad school):
1. BEFORE BUYING ANYTHING, talk to your potential professors AND your school admin. Some courses may require special "Windows only" software programs, OR Windows only web browsers.
2. Are Apple products used within the industry you're studying? Use what the industry uses. Since you're a business major, I expect Macs to be accepted, but you never know..
NOW assuming your professors and admin say "Macs are cool, use them!"...
I would recommend the MacBook Air M3.
1. It's lighter. You'll be carrying your computer to classes, library, study halls, etc, and every ounce counts.
2. The battery life is longer. There's no reason to bring your charger with you.
3. It's more reliable. There's no moving parts unlike a MacBook Pro.
4. ASSUMING you won't need sustained power for your classes, the MacBook Air is faster.
5. The MacBook Air is newer, so it'll get updates longer.
The only potential downside to a MacBook Air is that it can only connect to two external monitor, unlike four for the MacBook Pros (source:
https://support.apple.com/guide/macbook-air/use-an-external-display-apd8cdd74f57/mac#). I doubt you'll need to connect to more than two external monitors though.