I loved WotLK, because of how epic Ulduar and ICC were! Even if I had to wait through that awful patch in between ;D
Wrath of the Lich King was the most fun for me.
Wrath of the Lich King, hail Yogg-Saron! >.>
The Burning Crusade by far :D Karazhan > anything
My favorite expansion is Cataclysm, because it made leveling much more fun!
Wrath of the Lich King for content, Mists of Pandaria for story and feels.
Wrath of the Lich King, cause Arthas!
WoTLK, between Ulduar and just how epic it felt to topple the Lich King. Maybe rose colored goggles, but nothing has quiiite compared since.
Most definitly has to be Wrath of the Lich King. Twas when i first started doing actual raiding.
I'd have to say Wrath, mainly because Warcraft 3 is what got me into this game and it was nice to see everything wrapped up.
After some deliberation I would say Cataclysm. it had probably the most badass of villains we faced so far and I had awesome memories of Deathwing in WC2, and it has the best soundtrack. Besides it made leveling to 60 a lot more enjoyable.
I liked Pandaria quite a bit, but I have a feeling WoD will be my new favorite.
Burning Crusade was definitely my favorite.May be nostaliga, but I liked the mix of Burning Legion and exploring beyond the Dark Portal. Really looking forward to WoD for that (among many other) reasons.
Since I started playing from Wrath of the lich king, I think that that expansion is the best! And thank you, that looks awesome!
I have played since 60 but mop is the first time I got serious about something in the game
WotLK is my favourite expansion, as that is when I first started playing and really got into the game
Burning Crusade was my favorite expansion, solely because of the memories that were created while playing WoW when I had no clue what to do, not that I have much more of a clue nowadays...
I would have to say Wrath of the lich king was my favorite. That was when i first joined the world that I came to love.