cooper was decent enough to give upper tier guys a scrap when he was in shape and off the pipe. I don't consider peter very good, but two of him would easily dismantle smokin bert.
Cooper was one of my favorite fringe contenders. Always fun to watch and could give top tier fighters a tough fight like Neil mentioned. Unforutunately for him i think it ends the same way a lot of his fights did. He'd win some rounds, throw some good shots but his bravery would get the better of him. Sooner or later Peter would land something big that Bert wouldn't recover from.