These are guys that the Warriors could and/or should consider taking if guys don't drop. The talent after the top 5 is a big drop off, so a lot of these guys are in the same boat, but some make more sense to trade down for rather than use the 6th pick on them.
Greg Monroe 6'11" PF/C Georgetown: Best available at 6 in my opinion as of right now. Needs to work on low post game and lacks great athleticism, but could be a good pick and roll guy with Curry.
Al-Farouq Aminu 6'8" SF Wake Forest: Nice potential and would be decent at 6. Pretty uncertain about how good he'll be. If he shows that he has improved his perimeter game (jump shot, shooting range, ball handling) in draft workouts, and has buffed up a little bit, then I would say that he should be the pick at 6 if guys don't drop.
Cole Aldrich 6'11" C Kansas: Probably will produce similar numbers as Biedrins, so not really worth it at 6.
Ekpe Udoh 6'10" PF/C(on our team) Baylor: Really good shot blocker with good skills.
Xavier Henry 6'6" SG/SF Kentucky: Don't really see him being any better than guys we have (Azubuike, Williams, Morrow).
Ed Davis 6'9" PF North Carolina: We already drafted this guy (Wright).
Donatas Motiejunas 7'0" PF Lithuania: Really good shooting big man who will probably have difficulty down low, which is not something we need, nor want.
Hassan Whiteside 7'0" C Marshall: Not sure what to expect from this guy. Some people say he's a potential beast, and others say he's not a very good basketball player at this point. He's more of a trade down guy.
Paul George 6'8" SF Fresno State: Nice set of skills with good potential. Would be a solid player to trade down for.
Daniel Orton 6'10" C Kentucky: Didn't really get to show what he is capable of due to backing up Cousins, but looks like he has good potential. This is the guy I would really consider trading down for if Johnson and Cousins are gone. He's raw, but he looks like he could eventually be the steal of the draft. He probably would have been a top 5-10 pick next year if he stayed in school.
The heights of some of these player might be off by a little bit, but tomorrow is the NBA draft combine where they measure guys. So you could find out tomorrow.