Stranglethorn Vale from 31 - 42. . .  some people say they get really tired of the place but I LOVE the atmosphere of the place.  And since the flight path has been added at refuge camp place, no more running up and down the place endlessly *cheer*. 
For the 20s I really like Ashenvale, sure not all the quests are perfect but I have found I got better xp in that place than others (tried Duskwood, just didn't work for me.  And I get really depressed walking around it!).
Onwards from 42 I like a mixture of Un'goro and Tanaris, close together and both nice questing.  Something nice about the enviroment in Un'goro, gotta love those dinosaurs (but not when they sneak up behind you while drinking. . . .  gnome legs can't run fast. )

I'm on Aggramar Soulwind, but thanks for the offer!

Yay another person who is crazy about peaches, you just gotta love 'em

Agreed Audiophil, mages are very fun, they can bring down much higher level mobs than them sometimes quite easily compared to some other classes.    And.   .   .    I just like seeing big crits on the screen!

Thanks for the offer Daal, would be nice to get into a hopefully more permanent guild, after my old one died and lots of people left I've been guild hopping trying to find an active more 'busy' lots.

Hmm well the worst class for me would have to be rogue, I just can't play them! Combat is far to quick and I just can't manage the energy thing, I gave up after level 15. 
But I have to say Paladin comes second.   This is not because they were hard to play or I thought the attacks sucked or anything, I just found them SOOOO boring to play! I found myself invincible playing them, mail armour and healing is a nice combo, but combat is like snail speed.  

ORCS! Hmm never did like them myself. . .        oh well at least they aren't blood elves! (No offence to any BE players out there. . .        but gah! I can't stand them!)

Hey!

I was first introduced to this place by my good friend Alexandre, and after looking round it seems a nice community, can I join? 
I have a 66 mage and a 62 hunter, I have been playing WoW for about a year and a half now, and in this time I have gone through many many class changes and testing out chars and all that, but now I think mages are for me, so hopefully will get to 70 soon, and stop all the 'How come you have been playing for so long but never got top level?' comments from people :).    
(lol viking helmet smileys, never seen these before!)