Oh, of course! Thanks for the advice. I did a lot of on-line investigation about this when I was figuring out where to apply to. But, it'll be nice to go to visit days and figure out what the reality of the situation is, and what grad students thing of their advisors. I found it extremely frustrating that MIT's faculty site was completely out of date. Though it'll take a lot of willpower to make a finite decision (or to turn down MIT if they give me money), if I can't find an advisor that's better than my current guy (who just offered me an RA), I have no problem staying where I am.
On-topic a bit more: Has anyone heard from Cornell, yet? They're making me nervous.