I use BTCGuild, Slush Pool, and Eligius. Over the course of a few weeks that all payout about the same. With BTCGuild you get a pretty steady trickle. With Slush you get a fairly steady stream, but them seem to come in batches. I get Eligius payouts every couple of days. It's a much larger amount than the other pools pay per payout, but in the end they will pay out about equally.