first of all, rush has 4/year and mayo has 10/yr. after that, there are pros and cons to size of program. sure you can get lost in the shuffle in a big program and on the same note, it is hard to hide at a small program. it is all about how you feel about the place when you interview. if you looked at my final rank list, i had programs that were huge and others that were small. my advice is to try and steer away from 2/yr places if you are at all concerned about class size. nothing worse than having a very small program and a couple tools!!