Which Build Is Better?

I'm going to respect my Templar and I want to do a crit/staff build with elemental attacks and hopefully a Cast on Crit combo if possible. I have quite a few level 40ish characters with skill resets so I don't mind about messing a few up.

Option 1:
Elemental Equilibrium with high elemental damage increases so I can alternate between things like Infernal Blow and Glacial Hammer and maybe some spells if they can do damage. I think this would be really good damage against bosses and strong mobs. Would it be possible to use Cast on Crit here with two spells so that they would get used in a certain order (I.e powerful ice spell -> powerful fire spell)?

Build Here

Option 2:
Avatar of Fire and a bunch of fire damage increases. With this I would use something like Molten Strike and maybe throw in a Searing Bond Totem and hopefully Cast on Crit with Molten Shell if it works.

Build Here

Please let me know which sounds better/more fun to play.