well since he TKO'ed Damian Wills in 2006 he has gone on a rampage, destroying several fellow prospects.

and Who else could Klitscko fight (besides a joke fight where Haye cashes out)?

he wont fight his brother

chagave and valuev are tied up fighting to be undisputed minor league champion

Maskaev is in line for a WBC Mandatory

and Gomez is fighting his brother

That being said, I think Arreola is the best choice, and in my opinion, has the aggression and power that could cause wlad some problems.