I like ffxiv, and while combat system is, well, "dated" with hard rotation based tab target buff/debuff systems, it still is fun for the most part. It works for this game since it's built upon ideas and designs from the early to mid 2000 MMO's.
I generally prefer more "action combat" like Tera or even Wildstar/GW2 (where they're kind of a hybrid system) where it's more priority/skill based than hard rotation based tab target games. But like I said, the combat system that's in this game works fine as it is and I'm ok with that.