Who would win, Samus Aran vs. Iron Man?
Some advantages for both parties:
Iron Man: Flight, Blaster Cannon, Radar and Radar Jamming, Energy shield with Energy Absorption, J.A.R.V.I.S. Uplink, and remote "Armor Summoning"
Samus: Ice Missiles, Charged Blaster Cannon, Grapple Beam, Heat Resistance, Weakness Scanner, Morph Ball with Mega Bombs, Energy Shield with Backup Energy Tanks.