Originally Posted by
DaDimi
Depends on the amount of AP/SP you have.
Reason is, that FS scales better with SP.
Earth Shock-initial gets 38.58% of your SP as damage, while FS gets 21.42% initial and 60% (10% per tick) DoT.
So ES gets 38.58% of your SP while FS gets 81.42%.
The thing you have to remember though:
ES is buffed by Stormstrike, so it'll get 28% more from SP. (meaning 38.58 x 1.28, not +20%)
So ES gets ~50% of your SP while FS gets 81.42%. Can't think of any other separate buffs for those two spells... so this should be about it.
ES has higher base-damage, but FS scales better with SP.
Dang, Levva beat me to it -.-