UIUC should be the front runner.
You’ll be busy 24/7 and if you miss skyscrapers too much, Chicago isn’t far.
UIUC is the premier university for its region. UCI isn’t. That affects recruiting for prestige internships.
You’ll have to be on a straight and narrow path BTW - no drugs, under age drinking, etc.
I’ve known internationals who got Finance internships and OPT (none IB) but they had to go through a background check. Small mistakes that would be forgiven as “Aww shucks college students” can block the process.