[Vazhkatsi]

the advice i have is that if it is your first time with the game, demonology tree is probably easiest to level with, not necessarily as fast as affliction, but since affliction is usually a little more involved you will die a while lot less. also as an engineer and a demo lock i found that i had almost no + spell damage while leveling, instead i had a LOT of stamina, which means you and your pet stay alive longer and you have to eat less. another thing is, you can just bring food with you, lifetap for mana then eat. more bag space that way.