Howdy Y'all -
We all have our prefered rooms and for many various reasons. One I haven't seen mentioned here is Jet Set Poker and it has a lot to offer. It's (like AP and Champs) independent so there's no other quite like it and their software is some of the best I've ever seen. They're also quite innovative being one of the first to 86 no-shows from freerolls and probably the first to offer head-hunter events.
I've found their support to be top notch and their transfers are among the fastest I've ever seen. Hell, even the bulk of their players are courteous as well as skillful. I don't think they offer much in the way of freerolls any longer as they've already built a pretty solid base of players nor do they have exceptional deposit bonuses. They do allow instant player to player tranfers and it's a snap to take notes and locate Pals at their site. The "Last Hand" feature is very cool as well.
Personally I only have one major problem with them - I simply find it very hard to win there. I do think their players are better than you'll find at most sites and I'm sure that's a part of it but I doubt it's the only reason. I just seem to lose my mojo there and I can't tell you why.
Anyhow, regardless of where you play, I wish you all the best of luck players!