I try to play 10-15 games at a time, with a rare 20 going at other times. I find that less than 10 isnt satisfying enough, but more than 20 and i get to overwealmed. Once I get down to 5 or less games going, I immediately join enough to have 10 going
The maps I play the most are the AoR maps, just because I like their gameplay styles. Usually whenever a new map comes out, Ill join 1-5 games of that, but then if I dont like it I wont play it for a while.