Thank you all for the helpful replies :)
Though the vast majority of you, recommended a hunter, I've started a mage today to compare her with my lvl 20 warlock. The main reason I decided against a hunter is simply the fact that there are no undead hunters, and undead is by far my favorite race on the Horde side (if I would be playing Alliance and could chose a sexy nightelf huntress, things might look a bit differently ;) )
On another note, there are the points miraji brought up: the need to feed your pet. While pet interaction is certainly fun, I would hate to learn the profession of cooking, for it brings along other things you have to worry about: getting the right ingredients to level it up, those ingredients taking up slots in your bags etc.
If I would plan on playing a hunter as my main, this wouldn't be a disadvantage, but rather an enrichment, but for mere utility/fun alt, learning cooking is certainly another timesink to be considered in the equation.
As to chosing a rogue: well, I've leveld up a rogue to lvl 13, and while the killing speed is unmatched I probably suck at playing a rogue; i died quite often. :/
I've leveled a mage up to lvl 10 today and I am quite pleased so far. While also a bit twitchy to play as you have to move around and kite using your frostbolt, I have found that this particular twitchyness suits me much more than that required for succesfull rogue play. Killing speed is great, and the ice kiting aspect makes it very fun to play (I will probaly specc heaviliy into frost to make the most out of it). A mage also makes for a decent PvP char, so this is a also a plus.
The mount issue that swirly mentioned is am important point though. That you get a free mount with a warlock is a big plus for a casual char.
The disadavantage caster classes have in not profiting from gear upgrades as much as a melee or hunter class, is in this particular case an advantage, as it also means less gear dependency. Another thing both mage and warlocks provide are AEs, which I imagine to be useful when farming mobs several levels below your own later.
I guess I will level up my mage up to lvl 20 and then decide whether I go with the warlock or the mage :)
Though the vast majority of you, recommended a hunter, I've started a mage today to compare her with my lvl 20 warlock. The main reason I decided against a hunter is simply the fact that there are no undead hunters, and undead is by far my favorite race on the Horde side (if I would be playing Alliance and could chose a sexy nightelf huntress, things might look a bit differently ;) )
On another note, there are the points miraji brought up: the need to feed your pet. While pet interaction is certainly fun, I would hate to learn the profession of cooking, for it brings along other things you have to worry about: getting the right ingredients to level it up, those ingredients taking up slots in your bags etc.
If I would plan on playing a hunter as my main, this wouldn't be a disadvantage, but rather an enrichment, but for mere utility/fun alt, learning cooking is certainly another timesink to be considered in the equation.
As to chosing a rogue: well, I've leveld up a rogue to lvl 13, and while the killing speed is unmatched I probably suck at playing a rogue; i died quite often. :/
I've leveled a mage up to lvl 10 today and I am quite pleased so far. While also a bit twitchy to play as you have to move around and kite using your frostbolt, I have found that this particular twitchyness suits me much more than that required for succesfull rogue play. Killing speed is great, and the ice kiting aspect makes it very fun to play (I will probaly specc heaviliy into frost to make the most out of it). A mage also makes for a decent PvP char, so this is a also a plus.
The mount issue that swirly mentioned is am important point though. That you get a free mount with a warlock is a big plus for a casual char.
The disadavantage caster classes have in not profiting from gear upgrades as much as a melee or hunter class, is in this particular case an advantage, as it also means less gear dependency. Another thing both mage and warlocks provide are AEs, which I imagine to be useful when farming mobs several levels below your own later.
I guess I will level up my mage up to lvl 20 and then decide whether I go with the warlock or the mage :)