Well, Aaron, let me first say that, because Sports Illustrated has so many ACC alums, I have never been to an ACC arena. So while I would include Cameron Indoor Stadium on any list of this sort, I'll limit this to arenas I've actually visited. You never forget your first. Didn't think so. Don't forget your ear plugs.
Great acoustics magnify the sound.
With a bullet, thanks to the boisterous Izzone. The Sixth Man gets great seats and puts them to good use. The bouncy, vibrating floor still freaks me out, though. More historic than hostile, but a real treat nonetheless. Attached to a hotel, where the bar is always hopping before a game.