Hope I'm not too late.
Sorry for popping up like this, the vast majority of time I'm just a lurker on these boards (I have posted once or twice in the past though), and just noticed this interesting thread.
I actually started playing more and more boardgames lately, I don't have a favorite game, but I do have an ever increasing collection.
I keep a relatively exhaustive list on boardgamegeek:
http://www.boardgamegeek.com/collection/user/Tpek
I must say there are plenty of good board games out there. The problem is, that unlike with Dominions, they have no AI, and it's sometimes hard to find people to play with, more problematic are the games like Shadows Over Camelot (or the similar game Battlestar Galactica) that require 3+ players to even work.