Operator Thogar Mythic looks like an amazing fight.
I had the fortune of watching a top 40 guild (All In, the guild that makes the Fatboss videos) stream their Operator Thogar Mythic progression today, and I have to say, that fight just looks amazing. There's fire, and there's hectic movement, and there are times where you need to wait for the very last moment to move and if you are not exactly right you die, and the enrage timer is quite tight,... It just looks like an amazing fight that revolves around skill and not losing your cool during the tense moments. I'm sad that I'll probably only do that fight in LFR while it's current...
It is an incredibly well designed fight, the dev team knocked it out of the park with this. One of the coolest fights they've ever made imo.
10/10 mechanics
10/10 tuning
Also very fun to progress on, because you basically have to learn an 8 minute dance pattern, and making a mistake has instant consequences (choo choo!)