In another thread there is a discussion about which new stadium will be better--this is one area where I think the Twins will crush the Gophers. I haven't heard much of anything from the Gophers about interesting food options, and with Aramark on board, I'm not expecting much.
The contract had to go to ARAMARK because the University has a contract with them to do all of their foodservice.
ARAMARK does what the client asks of them and what they believe will maximize profits. They actually do some cool things at stadiums like having a Legal Seafood at Fenway Park. If the Gophers asked ARAMARK to put in a Buffalo Wild Wings within the stadium and BWLD was willing to franchise in a stadium (assuming it doesn't break an existing franchise agreeement I don't know why they wouldn't) you would be able to get wings in the stadium. You may not realize this but every foodservice & vending option in a U of M building is run by ARAMARK. That includes putting Chick-Fil-A, Starbucks, etc in Coffman because ARAMARK believed those products would sell the best in the location.
Centerplate has the Metrodome contract (through the Vikings), however, the Twins will be switching vendors in the new stadium. The Twins have already signed a contract with Sportservice (a subsidiary of Delaware North) to be their vendor at Target Field.