We live 25 minutes from Neyland Stadium. I hope you have a great time visiting Rocky Top. I won't be attending the game as I am taking this season off. .
Market Square is certainly a great place, as is Cumberland Avenue. Regarding Calhoun's, it's not the greatest place but does have great views. Personally, I'd go to Ruth's Chris, which is adjacent to Calhoun's and also on the Tennessee River.