Forget quests and raids and shit, what zones do you love just for the artistry and vibe. Post screen shots!
The Netherworld. Everything is just so.... purple and hazy. Just the way I like my nugs. There weren't any good screenshots on google images but its that zone where you run TK back in BC
Tanaris before the Cataclysm, there's something that zone possessed that was unmatched by any other area.
Nagrand was always my favorite leveling zone from bc def. I loved wintergrasp, all of the old zones really. Not now..but back then they were so populated and thriving was good times.
My favorites were: Storm Peaks Nagrand Mulgore!!! STV Hellfire Penninsula Vashj'jir Orgrimmar Grizzly Hills Howling Fjord Winterspring Uldum Netherwing Ledge
From the original WoW I'd have to say STV or Thousand Needles. Burning Crusade I'd have to go with Netherstorm or Nagrand. Wrath of the Lich King is a tough one. I liked Dragonblight and Sholazaar Basin a lot, but I'd have to say Icecrown was my favorite. Cata is tough. I loved Mt. Hyjal, Uldum because of the Egyptian theme, and Vasj'ir. Other favorites would be Org, Undercity, Hellfire Penn., Zangarmarsh, Un'Goro Crater, and a few others I can't remember the names of. I miss WoW, I wanna start playing again lol
If the new expansion came out at the beginning of the summer I would def play for the summer, but it won't be out til after University starts up again, and then I'll be too busy partyin to play WoW =(