39 twink - fire mage or warlock?

[Volsci]

I recently picked up a handful of green lenses (missed the snipe on one of stam )

I have a 39 warlock currently. I'm considering making a 39 mage however, just because I've always remembered one in particular from early TBC I saw in a bracket whom I idolized.

Are both classes workable? What are the strengths of each?
Estimate time to gear them?

Thanks;
Kohes / Genocist

 

[Smiffy]

The latest patch has done wonders for Warlocks, making them viable once again..
Demonology spec seems to be the most viable spec of the three

Mages are great also, I'm unfamilliar as to which spec etc is hot atm

 

[Mrcer]

fire is the hottest atm.

x4.5 extra chance to crit with scorch, pyroblast, and fireball against frozen targets. Meaning if you have 22% crit chance, you have a 99% chance to crit them on frozen targets. And you can run with scorch spamming so yeah.

Fire has really good burst but isnt OP.

Demo locks got a huge buff consider how underpowered they were not since TBC.