Originally Posted by
Tishko
Fire is better at aoe at all times, and Dracklis makes the gap even bigger and both specs require good legendaries for ST.
Arcane is pretty well rounded, and it feels like u are less dependant on lucky legendary drops to perform.
Generally all 3 specs are very equal on ST, with fire and arcane pulling ahead on aoe, and frost being better on cleave.
Have in mind that whatever spec you choose, it should be the one that you enjoy, not the one that performs better as of right now. After all, its Legion. You will have to invest a good amount of time to farm AP, then you will get legendaries for that spec, so it will become nearly impossible to swap.