DarkRaiden
Black Dynamite's Second
Thanos stomps.
Thor or Spectrum are the two strongest (Spectrum rocked Zeus with her blast)
and neither can really hurt Thanos. Thanos has insane energy durability to the point that Odin trying his best couldn't put him down. And his shields have made Galactus exert himself to the poiint of needing to feed afterwards.
Physically, he clashed with Drax, destroyed a planet, and didn't feel a thing and he's been through a 2 year wide blackhole with minor injuries. Also he nearly killed Surfer in about 7 hits (Surfer has more durability than everyone here except MAYBE Thor).
Thanos can kill any of them with 5 hits or so. He has omnidirectional blasts that will hit all of them at once, has eye beams that two-shotted Thor before, has easily dispatched of Hulk with TP and a casual b-smack, and btw most of the team besides Hulk and Thor don't even have TP defense so he can easily mindrape.
Add in his healing factor, his life drain abilities and transmutation (since he IS bloodlusted) and the fact that he beat a Cosmic Cube being,a nd it's clear that Thanos is far above this team. Even combined. It would take a large group of heralds just to scratch Thanos based on his feats, and he'd still win and outlast them.