Honestly I dont know much about IESE (is it in Spain?). I think it comes down to where you want to work post-MBA. If you want to go to back to Europe, IESE might be a better option. If you want to work in the US for a few years and then return to Europe, then Ross is better. I have not researched this but did you compare global rankings (FT, EI)?
Also, think about your post-MBA career- if it is possible for us internationals to get that. Marketing and certain other fields might be much more difficult for us to break into in the US.
Hope you choose Ross though

Shared Folders
dosa_don
Shared and darden- I know where you guys are from

- and I must say, I truly have not met anyone from either of those countries. Will be great meeting you guys.
Shared- are you matriculating at Ross?

dosa_don,
Oh, you must have read the threads "Ask Admission Consultants" where I have left my profile.
Do you think that IESE is a real rival to Ross?