Full Tilt Profile

Games Offered:
Texas Hold'em, Omaha Hi, Omaha Hi/Lo, Seven-Card Stud, Razz

Pros:
Full Tilt really wants to make playing poker like a fun video game, and lets you choose all sorts of crazy avatars to represent you at the table from sexy nurses to angry monkeys, and you can change the expression of your avatar from "normal" to "happy" to "confused." You can also customize the background.

What's fun about Full Tilt is that all the pros associated it have reserved seats at tables, and you can really sit down and play with one if they're at their seat.

Includes standard features such as player notes, chat, and you can multi-table (play at more than one game at a time).

Cons:
Windows-only. Some types and levels of games don't get a lot of players, so if you don't play Hold'em, you might not find a game. The seemingly great sign-up bonus they offer is pretty hard to clear and cash out.