Actually this has been done before. And like then everyone went for tony stark when John henry fights superman class villians. John henry armor has a lot of alien tech there is not a need for upgrade. His armor is superior to iron man in everyway. But of course steel goes down because iron man is so cool.
Asgardian Iron Man Armor, Ghost Armor, Prometheum Armor, Crossing Armor, Plastic Ghost Armor... Iron Man has fought guys like the Silver Surfer, Thanos, Captain Mar-Vell, Hulk, Thor, all are like Superman characters. Iron Man wins this.
of course he wins. Cyborg superman, mettallo, fenris, general eiling,...He generally helps superman now when he is fighting something that is insurmountable. All those armor that tony has won't last 5 minutes against steel in the aegis armor. Everyone who reads know this. Without his armor he is a very strong fighter, he took on luthors' bodyguards hope and mercy. Iron man does have an impressive resume', but as a warrior he is overrated. He has some impressive losses as well. To some weak characters.
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close match, but IM is too much. in an older avengers annual he KO'd silver surfer. course, he was ko'd too . . . still, with all the toys and all the experience IM would pull it out. i think he could reach limits that steel couldn't match.
This armor won't last 5 minutes? I think it'll last longer than that. He doesn't even have the aegis armor, didn't he leave it on Apokolips? Bring up the names of Steel's other armors he's created that'll stand a chance against current Iron Man armor.