Civil War armor gets mutilated by any other armor than the cave suit, heck maybe even then
Originally posted by Psychotron
Tony from IM1 would rip apart any post-IM3 version of himself. In the original Iron Man he could take tank shells and fall hundreds of feet without damage,
I would like to see him try to beat the Iron Man armor from the AOU climax. Which was strong enough manhandle Ultron drones and turn them to scrap in one move, carry that entire family in a bathtub or support that massive S.H.I.E.L.D transporter, repulsors powerful enough to blow the beejus out of the drones or wreck Vibranium Ultron along with Vision and Thor. He also has lasers which can be used multiple times, something that first movie Iron Man doesn't, and those lasers cut up the Ultron drones and cut through the underside of Ultron's device. Its unibeam along with Thor's attack caused the destruction of Sokovia. Finally it was durable enough to go through the entire fight of Sokovia, taking multiple blasts from the drones, tank the falling city crashing onto him, and then finally tank being on the outer edge of the Sokovia explosion and fast enough dodge to all the resultant falling debris.
The armor from the opening has a pretty good chance as well, it was bulletproof, being strong enough to go h2h with Ultron and make him run and tank his hits and blasts, even shrugging off when Ultron gravity pulled him into the side of a building and took chunks off it. It was able to toss Hydra goons pretty far and even wreck their jet packs, plow through an armored truck and casually plow through the forcefield around Loki's sceptre with just the glove. Its repulsors could wreck Ultron's second body, blast through gates, send Hydra tanks flying, destroy concrete bunkers, send Hydra mooks flying with direct hits, and even KOing them by the AOE effects of repulsors blasts hitting something near them, all the while tanking energy blasts from their cannons, one which even blasted him hard enough to embed him into a wall, and took crashing into their forcefield pretty well. It was fast enough to dodge several of those blasts as well. Its scanners were able to pinpoint the weakspot in the forcefield and fire a shoulder missile through it onto the field generator to dissipate it. Its wrist missile obliterated Ultron's second body.
That's all without the Hulkbuster, which could probably solo pretty much every other armor created together. Not to mention Tony getting considerably more experienced and way more skilled in h2h.