Originally Posted by
Sanoku
Ok so first off before you read what I'm saying, keep in mind it's from a mythic raiding perspective and if anyone is looking for advice to play the game casually you should honestly just play what you like.
So basically when the expansion started, I went for demo gear and tried to get the demo ring or bracers because it was understood that destro would be better for 5 mans and demo would be good for raiding.
Since then I have found myself only speccing demo for Nythendra and then going destro for the other 6 bosses. So my priorities have changed because realistically, every fight is either cleave or aoe and demo suffers immensely from movement and just isn't even worth playing most of the time.
I have found success excelling on fights like Il'gynoth, dragons, Cenarius, and Xavius with Ursoc and spider bitch being so so.
With the destro bracers or especially the belt, you find destro becoming much more competitive. So since it's already more versatile than demo, I would recommend filling out the destro artifact and going for destro legendaries unless/until Blizzard makes changes in 7.1. I personally haven't gotten any of the dps increasing legendaries yet (got the stupid pants and the 100% worthless for raiding ring) and I've been doing "ok".
So that's my two cents.