If Iron Man can keep this a range battle he can win but if he gets in and tries to duke it out with theew guys in some sort of slugfest I'd go with Namor.
namor has recently embarassed tony like at least twice.he's also the strongest here.he has the feats too.
namor wins.cap B comes in second.
edit: we should consult the list.just a few things i can think of off the top of my head.
Namor
stalemated the hulk at least 14 times
stalemated thor at least 2
stalemated black bolt twice
stalemated hercules like 4 times
stalemated silver surfer twice(circumstancial, but still impressive)
beat and stalemated radioactive man
stalemated sentry in a short scuffle
stalemated wonder man and ares together(he basically won.they were getting their asses kicked)
beat abomination
beat savage hulk twice
stalemate with an edge to namor vs beta ray bill.......on land(in a rain.Thor Corps #2)
beat an invaders team, ben grimm, mister fantastic, johnny storm and stalemated hulk one after another on land.
Namor was impressive in the past, let compare him to Thor and Hulk of today age? He has to team up with avengers to attack Hulk in groups...
*Did you read of new issue of Iron Man? Tony has too many high tech weapons and access to database information in his suit by his command. He can tag far range attacks and close* Read his respect thread in KMC ty
Iron Man 7/10
Ms.Marvel 1/10 only if she bite off Tony balls in bed
Namor 1/10 if he cries to Green Peace about Tony suit injecting pollution in the ocean.
Captain Britain 1/10 only if he surrenders like his country!
keep in mind that he went on to embarass WM and ares right after his fight with sentry...........so what happened to sentry? he wasn't fighting along with them.i'm not saying he lost.......but it seems he was out of commission for some time.
you haven't seen the illuminati issue where namor almost kills ironman and dr.strange saves him?