hands down - games on facebook are over-rated and irritating to me. I have few minutes to waste on chinsey games that reflect a poorly executed "Harvest Moon" for the Super Nintendo. Poker? I lost. But I see why people would play poker while on facebook with friends. It's social
I don't play Mafia Wars or Farmville or anything like that but with the Gameyola application I'm pretty much addicted to the Marble Lines game. Soooo much time wasted on that, lol.
Scrabble is the only one I play - although I used to have a go at their pool games and they weren't bad
I don't rate a lot of the facebook games because a lot of them are really similar but I do like backyard monsters, was a lot different to the rest and had some strategy about it.