The Hulk VS DC 's new 52 Swampthing after failing their previous universe .
I say hulk many reasons , if Hulk can rip secondary adamantium apart , Swamp thing is a twig , wats all this shrinking swampthing does , they copied Henry pym too lol
New 52 is such a Image comics scally wag .
Lets not forget Hulks Gamma Radiation , that can literally kill E.T 's Pot plant like it killed betsy . Let alone him actually punching swamp thing & ending up brittle shattering him into Hash .
Or lets do a DC tactic of exaggeration , & have hulk jump into space with swamp thing & tear him apart like void did to carnage ,,, no other plant life in space .