I find myself focusing more on short (< 1 hour) and long (> 2 hour) games. The games in between generally require more time to learn the rules and then to internalize the rules sufficiently to focus on the game play. While some 2+ hour games fall into that category as well, I find myself playing much fewer of them and resisting the urge to learn a new one on a whim.
My Top 10 games represent my favorites, mostly games that I've played for several years. My Hotness represent those games that I am trying to get to the table currently.
My long term goal is to reduce my game collection (excepting games that I play with my kids) to under 50 games.