Speaking 100% strictly as a Ret Paladin, using only Legion as a reference frame, I quite liked Tier 19. It was very nice looking and well modeled. T20 basically being an HD remodel of T6 gives it points for aesthetics, but negative points for originality.
They also did an absolutely tremendous job modeling the Ashbringer and its various models (pvp sword withstanding, because I dislike it). They also did a great job with the hidden appearance questline (despite it being bugged for a bit, that THANKFULLY didn't affect me), I was even lucky enough to be one of the first few with it on Stormrage.
There's a few out there that look good also, but I still rock the Cata PVP gear because it's one of the most unique looking sets by far.
I actually have 2 wallpapers someone made for me of my wow character. it's the 2 different Tmogs I typically float between.
http://orig08.deviantart.net/5854/f/...na-d8rnepc.png
http://orig03.deviantart.net/ab96/f/...na-d8rnext.png
Now with that said, There are more gear sets that I like in FF14 for sure. There's also some downright fucking baffling gear decisions.
Speaking strictly 100% as a Paladin:
1) The original AF gear was solid. Everything else prior to that though? Fucking awful.
2) The original PVP gear was cool being all animal inspired and I love the gold lion look (currently rocking this, with a black robed skirt and excalibur for that Knight Templar look I love).
2) I didn't care for any of the original raid gear, and even the high allagan coat was only decent looking to me. The Dreadwyrm stuff was really cool looking, but really limiting on color, even still dying it just never looks good.
3) The Tactics Ogre inspired gear (while not super cool for PLD), was top freaking tier for DRG. In fact so was AF1/2/3 for them.
4) The AF2 gear in HW for PLD was amazing. Probably my favorite set. I wish I could dye pieces of it separately.
5) The AF3 gear and sword are amazing looking (I hate that the sword clips the cape that it's designed to be paired with, but I digress).
I haven't been very impressed with the SB gear just yet. There was 1 leveling set I liked, but so far Susano weap/shield was lackluster, shinryu isn't any better, and the raid weapons/gear are pretty downright awful, again for PLD. The 24 man gear is decent, but I need to play with it once I get a few more pieces (got the chest first week thank god!).
On one hand I actually like that they change things up. For me, it keeps the gameplay fresh. On the other hand, losing key things doesn't feel fun at all.
I agree that it's harder to feel connecting to your wow character compared to FF14, but I think that has more to do with cutscenes and emotions and having a last name lol. Just my .08.
Fury was amazing in Legion. It was so much fun to play. Source: Brother, Warrior Main from 2005 ish to present. He'll tell you MoP was the best, but he enjoys Legion considerably. he says Arms is a shell of itself and honestly offensive how boring it is.