I think Pavlik throws the type of punches that would land against Hopkins. Hopkins is great at rolling with punches and blocking them with gloves, but Pavlik threads the needle very well with his punches and he would land.

If they fought now I predict Pavlik would win a decision, possibly scoring a knockdown in route to it. He would not stop Hopkins though as Hopkins is simply too smart and would tie him up to throw off Pavliks timing. It would be a long tough fight for both of them.