Playing my Warrior predominantly for the first time since WotlK, Fury specifically. Hadn't really enjoyed my Warrior much since WotlK and armour penetration at the end of ICC. It feels infinitely better to me than it did in MoP and WoD. While simplistic, it's fast paced and has some glorious animations. My second main/s, and toons I focused on primarily after Wrath were my Frost DK and Ret Pala, both of which I have a lot of fun with in Legion now. I didn't like the Frostscythe build but when BoS become viable I found it much more enjoyable. As for Ret, I'll never forgive them for removing Hammer of Wrath, such an iconic spell. But it's a lot of fun once you've got a bit of gear. As others have said, inquisition was horrific in MoP, as was our over reliance on burst windows to keep up with AW and GoAK.