Have you thought about maybe trying "mace" epic power pool for scorpion shield? I tend to try and do more defense then resistance since in my experience it tends to do better.
what would you recommend for something that is fun to play (fun being good survivalist) with decent dmg AoE. I have thought about /will or /regen since I like the idea of high regen. It seems nearly impossible though on /regen with instant healing to have it up at good times with its long recharge.