Originally Posted by
TheTempest
Arcane is actually amazing in dungeons, the burst AoE they have with RoP > Mark of Aluneth > 4 AC Barrage with Resonance and Rebound puts you in the millions of dps, and the whole 4 AE > Abarr AoE rotation is mana neutral, so you aren't oom like you say you are. Not to mention it goes up much faster than Fire, which relies on Ignite spreading on itself and ticking for a few moments.
Single target isn't bad in dungeons since bosses doesn't last long enough for our slow conserve phase to dip down our overall damage, the initial ~40-50 seconds of just spamming Blast and Missiles are amazing ST Dps, without lust I regularly float around 270k dps with 845 ilvl.
Don't know what you've seen or read, but spamming AE and NT for max quickening stacks is only better when you can reach 100 stacks and keep it for a while, something that needs a 5+ minute long fight, something that isn't possible in dungeons. And I can assure you this won't last long until blizz fix it.