Pavlik needs to legitemately move to 168 first and have a few fights against lower opposition to get comfortable. When Pavlik is ready for 168 and if they are still there, he would beat both Bute and Andrade imo.
That is all hypothetical,by the time he moves up prolly Bute would have moved up to LHW.Don't know about Andrade tough.Andrade would give him a hard fight,life and death,would work on his workrate that doesn't exist and he would double the jab till Bute wins a wide UD in schooling