I think many people (on this thread and SDN in general) make the mistake of assuming that a name means something is automatically better.
If i have a headache, i will take ibuprofen and pay $2 a bottle instead of $4 for advil, which is the same thing with some sugar added.
In terms of Harvard, i know many high level academics (i.e. prinicpal investigators [professors for you unsophiticates]) and physicians and they all say that Harvard is good and everything, but its not the best.
Columbia is actually considered better by experts, its probably number 2 or 3 in north america.
So columbia is a name school that is actually really good, Harvard is two parts name half a part actualy quality (main strength is its hospitals).
As for UCLA, you definitely have great name points(David Geffen notwithstanding) but you have to live in LA(smog, gangs, traffic).
Whereas NYC is one the best cities to live in the country. I would say NYC and SF are pretty close, NYC having the edge for weather and culture reasons.
So, Scooby Doo, if money is not important, then go to columbia, you will love manhattan. (i.e. if you plan on being a plastic surgeon, or a anesthesiolgist, or whatever).
If you get into LA, and you want less debt, then go there. It has the best hospital in the west.
Good luck all!