Which Fighter has the Best Chance to Beat a Klitschko Sister?

I picked the fighters that I think have a chance. I think either Klitschko would be a big favorite but:

Haye: He's fast and has power. He could take out anyone, or be taken out.

Briggs: He's got massive power, and a chance to pull off an upset.

Valuev: I know the giant sucks, BUT... I think there is one intangible here. I'm not sure how Wlad will deal with a guy who is bigger than himself. It's theoretically possible that he'll have problems with a 300lb 7 foot tall guy. Not likely, but possible.

The rest of the guys listed stand about ZERO chance of beating either brother.

 

Now that Gomez lost, Haye is our last hope...But only against Wlad. IMHO he couldent beat Vitali.

 

On the list given Haye and a fit Chagev have the best chance i think.Haye has speed and a big punch Chagev isnt a bad boxer and is durable.To be honest though i think any of these guys is going to struggle against the Klitchko`s.

 

The guys who fought them are 0-5 in this poll.