My favorite expansion is WOTLK!
The Burning Crusade was the most epic expansion imho :)
WOTLK was definitely my favorite. ICC is still my favorite raid. So many fun bosses, easily quotable too! I even named my cat after the dude you had to keep alive on Deathwhisper for the weekly quest! (Although at the time I thought the guy's name was Donovan, but its actually Darnavan, oops!)
For now bc but perhaps can be wod
Wrath of the Lichking!
Wrath of the lich king...definitely my favorite.
Lichking was the best patch ever! :P
I'm a tiny baby player, so Mists was the first expansion i played through, really. So, that would have to be my favorite. As it would be, anyways. Because it's so beautiful, and the lore behind it is amazing.
Wrath of the Lich King, gotta love that Grizzly Hills music.
I'd have to say Burning Crusade because that's the one when I started. It took a while to get used to but Cataclysm would be my second favorite.
easily The Burning Crusade
Pandaria for the content, Burning crusade for the story and the strong link with the good old warcraft :)
Wrath of the lich king, I do love me some DK
Have really enjoyed MoP
By far my favourite expansion was Burning crusade. It came at a specific point in my life when my mother left us and I was struggling at college. Having that second existence to fall back into when things may have got on top of me was huge, and helped make me who I am today.
Cataclysm because of kalimdor terrain update, battle pets, and for the way all leveling zones were far one from each other.
WoD for sure! Only expansion that really drived me nuts to sell things to buy sub and expansion lol! ^.^
Wrath of the Lich King. It was great to follow the footsteps of Arthas and I will never forget how I first set foot in Northrend. Also that Grizzly Hills soundtrack! <3
Wrath of the Lich King was my favorite expansion. Conclusion to Arthas' WC3 storyline, and Ulduar and ICC were great raids.
Mists of Pandaria. So many QualityOfLife changes, it made the game feel alive. I feel WoD will bring the same.