Vitali and Wlad would both stop him, I think. I don't think there would be a count of 10 though...Haye? Fast, hits hard.
I think anyone from Haye, the Klitschkos, and even guys like Kingpin might have a chance to put him to sleep. Too bad its extremely unlikely that he ever fights any of them.
Arreola, Haye, and the Klits would all knock him out... but I doubt that gigantic ***** will be taking any of those guys on any time soon.
Both Klitschkos would knock Valuev out. Haye might be able to do it if he's as good as people think he is, and it's still too early to know if Haye's that good. Arreola might be able to knock Valuev out, too.
I don't see anyone knocking the massive Russian out, including the Klitschkos. You would have to expend a lot of energy trying to do so and that would put you at risk of getting caught by a 7', 320 pound heavyweight.
wlad seems to like fighting till the eleventh round . Not so much to punish but to enjoy the spot light longer . I dont think he would ko Valuev [YT]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/D4CobVNTwL0&hl=en&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/D4CobVNTwL0&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>[/YT]
Either that, or maybe nobody wants to bother with trying to make such a match, because the money isn't there. After how horribly unimpressive he looked against Holyfield, Ruiz, Donald, Chagaev and Bergeron, I really can't imagine him ever filling up a stadium again.