Raw Spell Dmg Vs %spell Damage And Choice Of Armor

I'm in my early mage years (lv 30 currently) and I'm wondering what is better to have as a meteor user. I'm currently running with the following stats

14 str/10 dex/20 Int/15 Def/0 Agi

And have following Gear (only including the bonus important for meteor)
Little Inferno (+20%spell damage, +9 spell damage, +8%Fire damage)
Karraska (+13% earth damage)
Burning Pants (+3% Fire damage)
Audacity (+19% spell damage, +8 spell damage)
Juniper (ring +6% earth damage)

and my weapon is
Detlas Legacy (+4% spell damage)

I don't know if the % damage influences the dmg meteor will do (base dmg listed as 60-100)
and I'm also wondering if it is better to have more +% spell damage or just + spell damage (without the %)
I've seen a build where it only takes raw spell damage but wouldn't it be better to have more %based damage on higher level?

 

Raw is for multiple hit spells, smoke bobm or arrow storm for example, % is for spells like meteor, arrow bomb and spin attack

 

But doesn't raw spell damage add on to spells like meteor

 

Yes but, its better to go for a % boost

 

So should i still use my max spell dmg Spectre (39%) instead of a raw 120ish Third Eye?

 

Think of it like this, if you have 2 spells that deal 10k damage, one spell does 10k in one hit, one does it in 10 hits. If we add 40% damage, both are going to be 14k. (one will deal 14k, the other 1.4k * 10) Now if we add 1k damage per hit, the first will hit for 11k damage, the second for 20k (2k * 10).