Pokerstars vs other websites Pros Cons

[features]

Currently I play only on Stars, mainly NL$1BB or $2BB.

Pros- Lots of players, lots of games, and lots of tournaments.

Cons- No rakeback, nitfest of multitablers, and not too many fish.

I used to play on Absolute poker and the games were definatly weaker, yet they don't have much traffic in the cash games any more. Please give me some feedback on some good websites with traffic and weak players.

Specifically FTP and UB would be nice.
If you would like more detailed explaination of PS just let me know. Thanks