Assume Winky isn't completely shot and still has the impenetrable guard with the high workrate. Would any of these fighters be able to stop him? Vote for all that apply.
He has a very solid chin, a very good guard and he's hardly ever even in range. I don't think any of those could stop him legitmately.
If Winky gets past Williams, we will know that he is a long ways from shot. On that basis I voted Pavlik and Dawson. Winky can't hurt Pavlik, and if you can't get Kelly's respect early in the fight, he'll go into his relentless stalker mode, and that's always bad news. Dawson is to big. Winky would have real problems at 175. Any version of Winky that can beat Paul Willimas would score a boring, but wide, UD over Abraham.
They wouldn't KO him, but eventually he'd be dominated into retirement, so TKO. Pavlik at 160 or Kessler at SMW could do that.
I believe Chad could beat Winky in a fight, but all the other guys lose. Of course none of these guys could knock him out.
Anyone can be KO'd. But out of that list, You would have to go big considering Winky's chin in the past (Great) Dawson would be the best candidate. (Based only on size)