I love Zul'Gurub tbh... the scenery so beautiful... cool and unique encounters too, i just wish i played WoW on blizz servers pre-tbc, saw PvP and PvE movies from back then... everything was so... EPIC
then in TBC i think the best part was 2.4 with the Isle of Quel'Danas, a very cool place (i like bright colored and such environment...) and SWP ofc, tho i never got to raid it.
now in wotlk we start with... naxx, which as far as i understand used to be both hard and fun, and now it's none of those + the scenery sucks and tells you "go to bed" with all that green slime and black walls
and Ulduar is next...well ok, a big part of it is just...mechanical, robots, metal stuff, etc. but at least it has some cool parts too, like that nature environment part, and the blueish titan structures are cool too Smiley
i hope 3.2 will bring something like Zul'Gurub...or maybe Zul'Aman...green scenery and open space, outdoors...