I have Resisting Spells at various skill levels on most of my PvM characters. I have a bad feeling that they are wasted skill points for most of my guys. It seems more than half the spells I can get hit with can be removed with an enchanted apple. Is there value in having some Resist, instead of none? Is 75% or 80% worth keeping or should I drop it to pump up main skills from the 100% to the 120% range?