SO - sounds as if it is down to Purdue or the Ford Center?
Pros/Cons of each?? Obviously the first one everyone will cite is the geography. Being from Southern Indiana I was pumped to hear the Ford Center...but if it is up in Lafayette, more than likely won't make the trek up.
Who has more seating? Parking? Hotels?
Places of interest in the downtown area?? Evansville has a ton of restaurants, bars, and even a casino. I have to imagine that would be hard to top...but I know nothing of the Lafayette area - being a college town, I imagine there is some night-life as well. (Not that this should factor into any kid of decision)