Meh, level of competition is often overrated. I'm more thinking stylistically. Can Stiverne get inside the reach? Is he quick enough? If he does his usual laying on the ropes looking for counter oppotunities, i see him getting walloped something fierce.
His Wilders chin as bad as people say? He was KO'ed in the amaturers, and havent really been hit since (mostly fighting cans as you pointed out.)
His Jab doesn't seem particularly developed either, and he's just been windmilling / buttonmashing most of his opponents down. Can he do this to Stiverne?