1) Fielder (no brainer)
2) Zimmerman (nice value here)
3) Kemp (probably fair value @ rd# 4......steal if he ever starts trying)
4) Cruz (I like him a bit more than Ethier)
The last one is tough.
I like Ethier, but you can find plenty of guys like him in the draft. I am not entirely sold on Stanton, but great value at rd#21. And Pedroia is a stud (when healthy) at a scarce postion, but is he worth a 1st rounder?
Basically, it comes down to what kind of talent you think will be available in your draft. If you think there will be a lot of players with value equal to (or berrer than) Pedroia, I would keep Stanton and then try to draft a beast in the 1st round. If pickings will probably be thin in the 1st round of your draft, then I would say you have to lock up at least 1 middle infield position by keeping Pedroia.
Since Pedroia went in the 1st round previously, I suspect that the talent in your drafts aren't all that great...even in the first round. Therefore, my 5th official pick for you is:
5) Pedroia (not really a 1st rounder...but would you really get a better guy if you held onto your 1st rd pick?)
Help with mine:http://www.fantasybaseballcafe.com/forums/viewtopic.php?f=26&t=419177