Not really. Avengers have got power here (although some are useless) but with more variety. Dr. Strange' magic, Hulk's unlimited strength, Black Bolt's Screams and obviously Thor's Hammer Time.
Strange is packing some Cosmic scale magic now so he could solo all the Supermen.
Hulk too, could probably get the job done without going WBH, given either his Doc Green super-genius persona or his Savage Hulk ultra-super-genius + infinite TK & Strength ...
Then on top of them you have BM, BB, IM (who could offer distraction, at the least) and Thor.
I wouldn't call him the wink link, I would call him a weak link. He would lose all by himself, but this does not somehow transfer over to the other characters, as if this were some sort of shared consciousness, or gestalt.
He would most def beat Ironman but looking at Ironman fts, he will not be one punched. This is the same guy that has withstood hits from Thor, an empowered being with Thor, Hanmer, Surfer, etc, etc...
We would have to throw everything out of the window concerning Ironman to believe he couldn't endure hits from Superman. He would lose every time but...
He isn't a weak look though. You have 5 Superman that have 5 people that'll give them hell or outright beat them/him.
Strange vs Superman = Strange stomping
Blue Marvel vs Superman = debatable
Thor vs Superman = debatable
Hulk vs Superman = debatable
That leaves one Superman to take on Black Bolt, Spectrum, Strange and Ironman against one Supes which means, Ironman isn't a weak link.