I did one myself.
My explanations:
Greenhorne: I just love this area. Perfect introduction, mots memorable moments, actually great structure which none of the other areas replicate, and is overall a perfect area in my opinion (10/10)
Karkaton: Rescuing all of your teammates again is just special. Teaming up with the Great Sage is great too and what I especially like is finally seeing all your team jumbled up together. It's just so nice... The Dark Lord's Castle has the most annoying enemies in the game though. (9/10)
New Lumos: Great post-game area. Lack of structure but this area single-handedly saves the post-game of Miitopia. Tower of Dread's a fantastic final challenge and while I haven't got to the Tower of Despair yet I know I'll love it. (8/10)
Otherworld: Good final area, but short in my opinion but it doesn't need to be long. It sets up for the Darker Lord well enough and that boss is too good for me to rate Otherworld low. (6/10)
Neksdor: Good area, doesn't hold a candle to Greenhorne but it doesn't need to since Neksdor's a great area in it's own right. It also introduces some fantastic new jobs too. Overall great are but not much to say about it. (7/10)
Sky Scraper: Great build-up, great and fun area with pretty good pacing. Refighting all the bosses is cool, hard, and surprisingly not repetitive and doesn't feel like padding. Sometimes it feels a bit slow, the S tiers tend to have simply more engaging action, but that's about it. (7/10)
Traveller's Hub: Quests are cool. That's all I can say about the Traveller's Hub. The Quest Section in the story is just slow in my opinion, and even post-game quests aren't too exciting, but I still think it's great that it exists. Though I wish there was more to the section in the story. That part just felt like padding, it's frustrating at times, and you can't get into any of the areas there in my opinion. I'm conflicted on this one. (5/10)
Galados Isle: Not gonna lie don't fully get the hate for this one. The beginning is my favourite-looking area in the game, and Unchartes Galados is hard for a reason. The island has tons of flaws (The uncalled for huge difficulty spike, Uncharted Galados just being Realm of the Fey's design, not much to do) but I still quite like this area. I can't rate it too highly though. (Great Music though) (5/10)
Realm of the Fey: Eh, kinda underwhelming. The structure is eh, the atmosphere and music is eh in my opinion, the new jobs are pretty eh, the bosses are forgettable, and overall it's the 'eh' region in my opinion. Never been able to grow attached to it. It doesn't really have the charm of Greenhorne and Nekdor, the buildup of Karkaton and Sky Scraper, or whatever makes New Lumos so great. I have to praise it for it's length though, it's definitely not empty and the region is definitely fleshed out, and that's all I can ask for. (5/10)
Nimbus: More interesting then Powdered Peaks and Peculia since it alctually feels like it has a reason to exist. The Nimbus quests, in my opinion, are the best story quests in my opinion and the Plants are cool. It's pretty decent. (4.5/10)
Powdered Peaks: It's too empty. It's a shame, this area is absolutely gorgeous and I love the way it looks, but it's just so bland and uninteresting gameplay wise. Especially since Tshilly Peaks is hidden behind a post-game quest of all things. I wish this area was more fleshed out so badly... (3/10)
Peculia: Only area I actually dislike. Copying from other worlds is not cool in my opinion, it just feels lazy and it's hard to enjoy it in my eyes. On top of that, the area just feels tedious despite it's shortness since the teleporting makes the area feel much longer then it is. Manor Macabre's cool but that's all I can give it. (2/10)