After looking at the link, I can tell you that I’ve been to The Ruck, PJ’s and McGeary’s - although, never for a Bills game.
The Ruck - great wings and beer selection.
PJ’s - great BBQ. The bar area is decked out with lots of Bills posters, jerseys, etc. A few years back, PJ joined a bunch of local TBDers for lunch at another restaurant and introduced himself. The next luncheon we did, we went to PJ’s. He was nice enough to give us a tour and he and his staff are SUPER friendly.
McGeary’s - My McGeary’s experiences have exclusively been pre and post-gaming concerts at the Palace Theatre, which is across the street. It’s a dive, but the food is good and staff is friendly. The last time I was there, I was standing at the bar waiting to order drinks and the woman in front of me farted and I thought my face was going to melt off. Great times. Things @LeviF’s go-to for Bills games, so he can provide more useful input. I just hope that smelly skank isn’t there if you go.