I had already gotten some big info on the game by the time I started playing so I somewhat knew what I was going for.
So I chose an Undead Warlock.
Horde because I figured there'd be more of my kind player's there, and it was nice to play something with a background story than the generic "good-guys" the alliance seemed to offer (except elves and dwarves, but elves are Michael Jackson like, ewww, and dwarves... well, they're dwarves)
Undead because of the racials and because undead ************* are kind of cool, never stay dead for long hehe, and they have mrs. Vendetta Windrunner as a queen which is cool (dark mercenary tft: FTW !!!)
And a warlock because I absolutely loved the idea of casting spells like a mage, as well as commanding a demon against my enemies, and of course seeing them slowly die off from my curses while laughing maniacally and telling them what foolish mortals they were to stand up against me xD
Still love my warlock at 44, althought I'm having some issues with her addiction to fear mechanics and have come to hate hunters to their ******* death, so much I have completely abolished the thought of ever playing a hunter.
Then I decided to make an Undead priest, because troll spells&racials suck for priest, and I wanted to make a class somewhat opposed to the Dps-oriented warlock, however, I did not like the way a priest is played solo and hated the heck of a long and numerous down-times, so I dropped him at 14.
Then I started a troll shaman, he is now 21 and I like it pretty much, some spell casting combined with melee and healing, and also choosing your little totem helpers for the occassion. As it is I am building him towards enhancement but it is quite cool filling gaps like, aggroing tank-forgotten mobs who run off to the mage or healer, earth-shocking ****** healers, healing battered allies and so on... I think I find multi-tasking is quite interesting ^_^