I don't know if this happens to other people, but what constitutes as my favorite poker sites seem to change in time. For example, I used to play exclusively at
Party Poker,
Poker Stars and True Poker. I don't play any of them anymore. I had a long-standing tepid feeling about Poker Host, but they are now solidly my #3 site.
Much to my surprise, my new #4 site is
Fair Poker, which wasn't even on the radar a few weeks ago. They are a lot like
Noble (though I don't remember them being this way originally) and they're becoming more and more forum friendly.
Absolute Poker seems to have proven that poker rooms catering to poker forums is a recipe for success. Thus,
Fair Poker will probably grow a bit in the soon future.