Today's Surfer solos, he vaporizes the planet anyone still standing after that he destroys with a speed blitz or he can shrink everyone into a micro universe and render their attacks as harmless as a single photon of light
Classic Dr Strange solos, with time to prepare he could wreck up the whole Galaxy. This guy was a monster and current Fate is pretty pathetic
Namor
Hulk
Valkyrie
Ms. Marvel
are all owned by any member of the JSA,
any JSA can solo this team, minus Jay since this Flash won't touch Ms Marvel if she's in flight
One on One the JSA win more fights
unless you use the cartoon version of JSA then it becomes a close match individually
Which Strange it is?
Classic would **** JSA up. Current get badly beaten by Fate, and so JSA would stomp, even if Hulk and Surfer are beast and would pummel down some.