Haha, I see you're still struggling with this dilemma huh?
I dropped Crosby (think I told you this already), and kept Berroa. So far so good, I got credit for Crosby's 2 HR day.
I think you can't really go wrong with any of those guys, they will all have good/solid years. I think by the end of the year it won't really matter who you kept/dropped.
Crosby has more upside than any of them IMO. I voted for Berroa though because I don't think he'll match last year's production, but he'll still be good. KC as a whole has been cold lately, so I hope they can turn it around.