If you've seen his other stuff and know that he came from Troma, Peacemaker and Suicide Squad are much, much more his style than GOTG. I mean, I love his GOTG films. I think they've got incredible heart and warmth to them, great humor, really good action, they're just terrific films.
But deep down, I think he vibes more with the work he's done with DC. Marvel has to maintain its "house style" for the most part, and the window to stretch that is tighter. DC seems more willing to push the boundaries, even if they can't figure out what the hell to do with Batman or whatever.