Going back to the original question,Id have put my money on Rourke,he was a serviceable pro,if not a particularly good one,retiring with 6(4kos)-0 and 2 draws,and was 20-7 with 17 KO's as an ammie,he would have been a great ammie if he hadnt gotten two concussions in a row. The only reason he even became an actor
As far as who's the better actor,Barfly is one of the coolest films ever