I think Silver Surfer has the potential to take out the entire JLA team, except that the way he is written he won't do it.
If they had a crossover, they would definately make Surfer lose.
Surfer is way sensitive, holds back a lot, and would never hurt someone unless he hated them (like Thanos for example, who he even feels sorry for sometimes)
Surfer's powers are more than enough to beat the JLA, but his personality won't let him get far with it.
Surfer is too much of a softee, and I hate that he gets beaten by ppl who are so inferior to his true self.
Sorta like the whole deal with Darksied, where he has so much power and should be so much more of a threat, but he gets his ass handed to him over and over and over.....its all bad writing, it's not Darkseid or Surfer's actual faults.
{{{{{{You think Surfer can out-willpower Superman?}}}}}}}
I doubt it. And I'm a Surfer fan, and I think Superman is the cheesiest sh*t around, but even I doubt that Surfer can outwill Superman to an extant.
If Surfer resisted the Mind Gem, however, than yeah he could DEFINATELY resist Superman's attempts to violate his mind and will, HOWEVER, I don't think Silver Surfer can put down Superman's will either.
I don't think the battle depends on will power here