Scrabble never goes too long without being set up at our house. Nor does Connect Four (not really a board game, but close enough).
On the subject of Ticket to Ride- I've only played the XBOX360 arcade version, but what fun. I totally plan on getting a 'hard' copy.
We have the "A Game of Thrones" board game and the expansion unopened... been sitting on the shelf for months. We really need to get that out and play it; excited about that one.