Zynga http://www.playspan.com/zynga has got some best flash games. They have really popular games like Cafe World, Farmville, Mafia Wars, etc. You can even play them on Face Book.
I've played Raze. It's alright, I guess. Not my all-time favorite. Personally, I like stupid, cheesy games. Like the Fancy Pants Adventure and Hobo xP I should probably try the Sonny and Crysis series, since I've never played them before.
I like some flash games as they are the definition of independent and are really a vassal of original and creative ideas.
Fight pirates, survive and protect an entire tribe in this epic adventure! Use your skills to survive the scorching sun and the unusual conditions in this mysterious island and find the way back or better in his next adventure.