I tried out starcraft after 5+ beers, and everything seemed to move a bit faster than usual. You really have to concentrate to stay on the ball, but I managed to perform acceptably in a comp-stomp (which is all I can usually manage anyway, I'm not a pro SC gamer in the least). Also, I would estimate that I was able to mainitain at least 80% of my usual performance on the origninal Unreal Tournament after my 8th beer.
If you enjoy occasional binge drinking, (but not to the point of puking or blacking out) and are also a gamer, I recommend trying both at least once. I had a fun time, and you might as well. One last note, this is best done with one or more friends.