I never got on the "I hate Sentry" band wagon, so I'm happy to see him owning a herald (even if it's a lesser herald). He doesn't even look concerned or interested during the fight. Somehow I think Surfer would have more problems taking out Terrax, so I'd have no problem putting him above the silvery one.
Thanos? That would be sweet. Not too many are there, though, and just hanging with Thanos puts you around Skyfather.
Who's this Ronin guy that puts him down then?? He must be pretty uber too.