http://wiki.winehq.org/GameChecklist makes it really easy to see the appdb (and amazon, gamerankings.com, wikipedia, and playonlinux) entries for the top 10 games at gamerankings.com and the top 20 games at amazon.com. I'm about 1/5th of the way through (it takes about three minutes per game to produce this list, maybe I'll do some more this afternoon) This is kind of an experiment. Ideally the appdb would have this information, but it's a lot easier to prototype that in the wiki (with a couple perl and shell scripts to help wrangle the data).