Go round the campuses (campi?) and towns and see which one works for you. If one's all concrete and tightly packed in and the paint's falling off everywhere, and the other's all trees and mellow and nice smart buildings, the choice is pretty obvious! :-) This applies to the uni in general, and also to your department in particular - you'll not infrequently find that some departments are the poor relatives and get stiffed in the funding.

Studying at a place you like will get you a better degree than studying at a place you hate. And even if it doesn't, you'll've had a better time whilst you're there, anyway! ;-)

Graham.