I got $40k at UCLA and (I think) no money at Kellogg, so I should be able to give you a good perspective haha.
For me, choosing Kellogg was an insanely easy choice.
1) The average starting salary/bonus is $25k higher at Kellogg than UCLA.....so that right there is "worth" considerably more than $40k. The difference gets even more huge when you look at 5 year out and 20 year out salary data.
2) Prestige. Kellogg is a top 5 school, UCLA is barely top 15. Kellogg is a national brand, UCLA is specific to California only. I really didn't like being beholden to one specific region....especially a region that has employment issues (UCLA has the worst employment figures out the top 25).
3) Recruiting. I want to do consulting, so a little different than you, but 3x more people get into consulting at kellogg than UCLA, and they have like 10-15 times more people get MBB. For finance, there might be slightly more people who get finance jobs than Kellogg (I don't have the employment report in front of me), but it's important to realize there's A LOT of self selection going on (most finance people choose to go to columbia or booth) and to look at the quality of the jobs. If you want a finance job from Kellogg, you can get it. At UCLA, very few people get front office investment jobs, most of the finance jobs are lower quality. At Kellogg, if you want to be an investment banker, you can get it.
4) Community. UCLA has a lot of commuters who have lived in LA their whole life. Kellogg is the closest knit community there is (well, maybe after Tuck). I've heard people complain about the UCLA community and have some unhappiness with their time there, I've never heard a negative thing from a Kellogg student. That's a bit anecdotal, but was important for convincing me.
Only thing in UCLA's favor is the weather, kinda sad I have to deal with polar vortexes, but that's a bad reason to choose a school haha.