Whiteside.
A SF who can actually shoot would be a nice change over what we've had. But Jazz need size if they're ever going to contend. I don't care if the Jazz win 55 games or 45 games, if all it amounts to is getting our a$$es kicked by LA, SA, etc. in the 1st or 2nd round.
Even if Whiteside plays the entire season in the D-League and doesn't help until 2011, that's ok with me.