Tavern on the Tracks which is 7 or so blocks from BOA stadium has my endorsement. I spent the day there with my wife watching the game in which Bacarri Rambo intercepted Aaron Rodgers twice to beat the Packers, December 14, 2014. Had a great time and they were a very active group. I'd bet they would plan big things for when the Bills actually come to town. You might want to contact their Bills Backer group.