wh40k armor.
Chaos Terminator armor all the way.
dense enough to stop bullets from a high powered anti tank cannon, strong enough to survive being stepped on by a 70 foot tall bipedial walking weapons platform, and i need not speed or agility for i can Teleport instantly infront of you with my axe, imbued with the ruinous powers and possessed with an ancient terrible daemon, and twin linked bolter filled with high explosive rocket propelled grenades capable of knocking out light tanks...