Here mine
1-
MoP’s both cities, Dalaran (Legion), Valdrakken
All 3 cities me feel good area
2-
Oribos - is one worst city in WoW. You knew
Zuldazar- Look beautiful. But pain fly need high and confuse “maze”
Undercity - Since pain for flying mount and too small room
Exodar and Silvermoon City - Since still cant flying. It’s ridiculous. Blizz dont upgrade it as we waited
I hoped TWW’s capital have comfortable.
I dont like Zuldazar.
but i love Dalaran for its convenience.
Valdrakken is a mess though.
My favourite capitol is either Thunder Bluff with its convenient layout and stunning beauty, or it’s Ironforge because of how safe it feels.
I also really like Zuldazar for its stunning beauty and realistic feel, however it is very inconvenient to navigate.
I think the capitols I would have liked best are actually those that didn’t make it. I think I would have loved Temple of Karabor and especially Gilneas City.
As for least favourite, there’s no doubt in my mind that Oribos tops the list. It’s horrible with its muted colours that make it hard to see where you are, its signs so high up in the air you don’t even notice them for years because our cameras always point down.
My 2nd least favourite has got to be the WotLK version of Lagaran. Excuse me, Dalaran. Why? Because even on a 680 GTX, which was a very good card in 2008, Dalaran lagged the server out and brought my computer to its knees. It was much, much too densely populated. Had it been alliance only they might have gotten away with it, but what we got was insane. I honestly don’t know what they were thinking.
Boralus. For me this is hands down the most real feeling actual city in WoW.
Oribos. I wouldn’t even qualify it as a city.
Best - Stormwind for its buildings, Ironforge because everything is close so you don’t have to run miles to do anything and Boralus because it’s like a real city (even if it’s a bit too big).
Worst - Oribos plus anywhere I get lost which covers a lot of them including Zuldazar, Thunder Bluff and Exodar
Hard to pick a favourite. But I will pick My Garrison since it’s the only hub with all features that I use many days every expansion next to the capital city of that expansion.
As for least favourite, I can’t say I have any. Someone mentioned Silvermoon and Exodar for lack of flying, and I will admit that, even though Exodar is possibly the 3rd most used capital for me, I still haven’t learned its layout.
Best - Stormwind and Undercity for me. Everything is just neatly together and they’re both easy to navigate. I also like going around the Ruins of Lordaeron, for the latter.
Worst - Oribos, because -Shadowlands- and I hate everything about Shadowlands.
More like WoW’s version of Deep Space 9. Feels like your on a space station floating in the middle of nowhere.
Yeah, but at least DS9 had an interesting design and appealing nooks and crannies throughout its structure. 
True, it had a bar like ds9 but the broker running it was no Quark, the tailor wasn’t a Garek either.
Wonder who Odo would’ve been? 
Mine are reversed, IF is my favorite and TB is a close second.
PS I forgot to add you to Bnet the last time, feel free to add me on discord amonet8844.
“Fave”: orgrimmar (because I can find things, it’s even possible to navigate with skyriding, plus easy access to almost everywhere)
Least fave: Boralus (where tf is anything???), Iron Forge (how tf do you get to anything), Oribos (so much useless running around on too short legs)
Dishonorable mention: Silvermoon (we don’t talk about Silvermoon)
Stormwind has always that certain place in my heart when you 1st walked int here and saw the giant statues and the music plays and you are just going “wow holy trump”
Silvermoon from pure amazing fantasy aspect, it just has that amazing feeling of GIANT capital city
Least favourite would be Zuldazar of everything being spread further apart than my sense of humor. It is amazing looking place but the placement of all is just hit in the nuts
Absolute favourite: (Horde) Thunder Bluff, (Alliance) Boralus, (Neutral) Dalaran
Least favourite: (Horde) Dazar’alor, (Alliance) Exodar, (Neutral) Oribas
Magaluf,
one of the craziest places I’ve been to. I actually went there multiple times. I can strongly recommend.
In Warcraft, not ours… 
Oh okay, erm… then I have to go with… Magaluf.
Crazy place guys
Boralus is by far my favorite, and the sooner Oribos gets blown up the better.
Boralus > Oribos
My favourite is Boralus, my least favourite is the Echo Isles.