i have...
85 hunter
85 rogue
69 warrior
80 pally
68 DK
20 Mage
7 priest <-- banker

all belf. no druid/shaman yet cause belf cant use them

i got my rogue to 5x then got bored of it. so i make hunter and level to 85. but when go bg i c rogue so nice to use (ninja here and there ) so i retrain my rogue
then i found a lot of 2h nice swords during my rogue dungeoning. so after rogue get to 85, i make warrior. level to 69 (titan grip pre mOP) and stop to acc my gf 70 lock. make another pally and level to 80 (for 2h sword as well). but after MOP my pally become battle mage. dont really like the changes so make another DK. now still finding best rotation for UH DK
somewhere during the time above i make a priest just to use the bank

how i level is just queue dungeon, afk and watch futurama/Big bang theory. once the q found match, go back to my laptop and finish the dungeon

EDIT : oh get heirloom as well. the 35% EXP bonus is a big time saver, especially during 1-15 when u cant do dungeon

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Added on September 13, 2012, 4:17 pmactually no worries there. since once u hit 80, ur gear (unless u ah/bg) will not be enough for cata dungeon. u will need to do some cata quest to get better item for the dungeon

This post has been edited by Frostlord: Sep 13 2012, 04:17 PM