My wife and I stayed at the Camelback last December and fell in love with it - so much so that we are going back this year.
I will be staying at the Ihiliani for the first time in August - have heard great things about that too.
While I wouldn't rank it at the top, I've also enjoyed several stays at Le Merigot, which is a very nice property, though I am not a huge fan of Santa Monica.