if you're not interested in chasing bonuses as much Pokerroom and skins are very soft at that level. They DO of course offer bonuses, and plenty of them, but they're very slow to clear at these stakes.

[edit] rereading your first message, if you're playing at Stars then you're used to slow clearing bonuses. The rate of bonus clearance at .25/.50 is probably slightly better at stars vs. Pokerrooom or skins but your win rate will probably be higher. But frankly I'd suggest going to Party. Your rate of bonus clearance will be much higher there, probably as high if not higher than your win rate depending on your skill level.