Its hard to tell, they both didn't finish when it seemed like they should/could have. Also credit it due to both Pavlik and Peter for having huge hearts. Its hard to tell who was more hurt, because they both looked VERY close to being stopped. I'd say that since Peter was down 3 times as opposed to 1, that McCline did a worse job of finishing.
Pavlik was very hurt as well, and Taylor was throwing tons of wild shots and punched himself out. He almost had Pavlik down a 2nd time when he hit him on the back of the head and Pavlik did the Zab Judah chicken dance acorss the ring (haha). Pavlik showed huge heart, and was punching back at Taylor by the end of the round. It seemed like McCline totally gassed himself out though, as he basically stopped throwing punches after the knock downs.