Oct 21st 2010 8:15AM Silly things really - Believe it or not, I really liked the seige of Ulduar. It felt quite smart riding into battle with a group of friends in some delapidated engines of war.
I liked the entrance of Sapphiron just before Kael'Thuzad. A skeletal dragon animating itself from a pile of bones = cool.
One of the moments of awesomeness is when my first character emerged into Deathknell and took his first faltering steps through the starter quests, made it out to Brill, then started exposing parts of the map and you think to yourself - "OMG this game is BIG!"
Seeing the phases carved into the rock at Thandol Span took me back a bit.
The first time we downed Gruul (it was our first guild 25), was epic - I was actually scared when we were doing that.
Those are just a few.