Apparently Saint's Row was good, but I haven't played it.
You should really check it out. It's frequently on sale (either last weekend or the one before it was like $17 somewhere...) and it's a blast to play.
I already got it from a steam sale for ridiculously cheap. But I have like 20-30 other games that I haven't played. I know myself tho and I usually get bored really quickly of games that are too silly.