Floyds (just off the Western blue line stop) has been my go to so far this playoffs, but that's mostly because I'm in the area. Good draft list, have played the volume every game. Frontier is off the division stop, little closer to the city, and will also have a good beer list...can't confirm the volume, but I think it's safe to assume (pretty sure I was there for Giants royals game 7 last year and they played the volume). Edit: I should note that these are more dive/corner bars, especially Floyds. They'll be crowded, but mostly just with regulars. If you're looking for more of a boisterous atmosphere, I'd recommend getting off at Division and walking west until you run into something that looks appealing...50/Fifty, Fat Pour, The Boundary, The Anthem. Those will all be a bit bigger/louder. If you're focused on the beer, Links Taproom off the Damen stop probably has the best selection.