Wondering what the best leveling spec for a Warlock is

I would say affliction or demo.

affi is best for leveling


demo is better then destro though

I fell in love with warlocks by playing affliction, it's just so damn fun. You get to run around and throw all your dots up. I leveled always affliction, but this time around from 90-100 I was demo and it was a lot of fun and pretty effective, but I leveled with someone else so I can't account for solo leveling. Even though destro is the best spec right now, leveling with it is kinda shitty.