Go with 75, save the overstacked fire/poison resist for useful mods like +HP/mana/stamina.
Any good mage will always be sure you're cursed before dumping spells on you, which even if you're "corpse proof" you'll NEVER be curse proof

(drops you to 60's across the board).
I don't bother corpsing people anymore because of how easy it is to make suits corpse proof now. I can't remember the last time people in my guild even called for a corpse on someone & we fight with a lot of the best east coasters.