The general consensus for farming is fire. I've been told this is true for Corrupters as well. But I cant help but ask why? Fire has Rain (which hits for 2 dmg) at 400% dmg using FS, Fireball, Inferno and that's it (I don't use cones). So that leaves you with 2 affective AoEs.
Water has whirpool, water burst, and Geyser. Whirlpool does *8* dmg on each hit absolutely crushing rain with the same mechanics other than AoE size being a smidge smaller. Burst and geyser are pretty much the same.
So I ask why people prefer fire over water? Am I missing something when it just comes to dmg output and farming?