In DOS 1 the ultimate Air-trait was stun immunity, I totally loved that on my rogue. The ultimate Geomancer was pretty useless I think. About Demon and Ice king I think we didn't care at all. About those last two in DOS2 it is hard to tell, how easy it will be achievable to reach max resistance, so hard to tell at current state. Demon king probably is a must have for someone who takes zombie.
Oh you are SO wrong on this (considering DOS:EE). Air trait was absolutely useless and a waste of a talent point, as you could get stun immunity on a ring, and it wasnt that big of a rarity after level 10 or 11 or so (sometimes much earlier). Iceking was kinda meh, yeah, but demon - you serious? Coupled with zombie, you could get over 100% fire immunity, and then explode-immolate-meteor-dedly spores on ground on yourself, and you not only damage anyone really badly, you also heal up.
