manjaro
No-No Place-licky McNicky
IM resources are vast beyond measure. not only does he have a device that can sap energy of all sorts but some of is suits have that mechanism built in to siphon energy from heat, extreme cold, cosmic, and solar power sources when his batteries are running low, but he can also siphon just for the hell of it. the reason i think he has a chance is bcuz writers like to play cheap. for all we know they would say that he already has a suit thats powered by kryptonite or some BS like that.....
speaking in terms of how superman fights(which annoys the f uck outta me) he doesnt employ super speed when he throws down. in fact, the only time in a long long time ive seen him use super speed was when that imperiex probe destryed his parents farm and he just lost it. but i dont think he would do that against IM
so IMO stark having enuff time to leech at least some of his stored solar energy is a reasonable argument. besides his suits can stand up to a lot of pressure, for back in the day way before comics got uber scientific..the good ol days where all a guy had to do was spill some household chemicals on himself and he would get super powers.
in the original contest of champions, Terrax dropped a land mass the size of manhattan on IM and he just flew into it and smashed it up. that was with his silver centurian suit. since then his junk have become way more advanced. being equipped with force fields and other energy absorbing mechanisms. so i say he holds his own if its just one of his regular high powered suit.
HOWEVER, and this is a big HOWEVER, his thorbuster suit is a brash mixture of technology and Asgardian magic, and we all know that superman is suseptable to magic, and the Thorbuster armor exudes some pretty potent magic. so im willing to go out on a limb and say that with this armor he COULD beat superman. especially if he starts off with a huge concentrated blast of magic from his chest plate thingy