Physically, I think J'onn and Max are rough equals. As telepaths, J'onn might have the -ever so slight- edge, but not enough of an edge to dominate her by any means -- plus, Max has FAR more psionic abilities in her arsenal than he does. I think she'd edge him out, tbh.
Same with Thor and BRB. It'd be an extremely close battle, but Thor would ultimately win more times than not.
Team 2 wins, imo.
Hasn't the Martian gotten an upgraded in Brightest day recently?
As for the fight, my money is on team 1. I'm rooting for the underdog (John).. However, I can see team two taking the slight majority from team one. As the previous poster mentioned, both teams are about even. It all comes down to who defeats their opponent first.