Unfortunately, I've only been to MSG and Barclays, as I generally vacation in the summer when there's no hockey or around the holidays when I'm home. But one of these years I wanna go on vacation and take a tour of some arenas around the league.
I was at a game in 2004 where Jagr, Messier, and Leetch were all on the ice at the same time, on the same team, on the same line. I consider that a feather in my cap. They all scored too.
I also saw Anthony Beauvillier's first NHL goal and I saw Derek Boogaard score once.