Punisher because he is a trained and experienced fighter and soldier. He has fought super human opponents before and came out okay. He can kill Kraven with any of the weapons he carries on him or kill him in close combat with his fists or a knife even. Kraven isn't more skilled than The Punisher.
I'm gonna give this to Kraven, Kraven has animal senses so he should be able to be at least one step ahead of punisher in a hunting scenario,I mean he gave venom problems Eddie Brock and flash,so I'm gonna give it to Kraven.