I don't do pre-organised group raids anymore, nor have any interest in doing normal and beyond, so for me, the look of a raid and the lore of the place tend to be more important.
On that note, I really liked the raids so far, the Emerald Nightmare was interesting enough, so I quite liked the place. 7/10.
Nighthold was a cool elf city themed raid, so the whole place was interesting to be in and look at, and I also enjoyed how it was tied quite strongly into the storyline, with a massive quest chain leading up to the player actually going in (As opposed to some previous raids where even if you looked at the whole storyline, you still kinda wonder "how is my character even aware this place exists to be attacking it?). I'm also glad it deals with the last AU Dreanor character that was hanging around. If we're going to develop a character, I'd prefer it to be somebody from our Azeroth. When it's an AU version of a character, it feels like it doesn't mater what happens, because it's not the "real" version, ya know? Anyway, I enjoyed running this place in LFR, so 8/10
Tomb of Sargeras is a major lore location, and again had a quest chain leading up to the player attacking the place...hell, the intro scenario kinda sets it up as well. I'd been looking forward to doing this place, as it was a location I'd wondered why it wasn't already in the game for a long time (Having 1st read about it via the Warcraft 2 manual back in the late nineties).
I haven't run this place awhole lot, as I only resubbed to WoW a month or so ago, but I can't say I've found the place too ugly, which I did find with the orc themed dungeons at the end of WoD. I'd say a solid 7/10.
As for Antorus...I can't really comment on it, as I'm still trapped behind the LFR gating. I did quite like the 1st boss and how he'd attack with one of his 2 cannons which you need to break, but otherwise I can't really comment until I get to see the whole place.