I'm sure its been said but tl;dr War needs an hp buff and some of these (taking into account tanking in coil and possibly future raids/dungeons):

1. Defiance: boost hp 50% reduce damage 25% increase emnity 25%
2. Storm's Path: heals 100% dmg.
3. Storm's Eye: potency 130 aoe.
4. Steel Cyclone: still requires 5 stacks but now adds 10% dmg reduction aoe.
5. Infuriate: is fine for now.
6. Mercy Stroke: Always critical, same gcd and same 20% recovery. (similar to archer misery)
7. Fix the stun animation. With a 30 sec gcd and roughly a 1 sec wind-up animation it is stupidly long for a stun. I don't care about the gcd I just want my stuns to hit when I press the button. A 10-15 frame advantage would be preferred.