I love doing quests to level, but it's more a matter of so many people being on the same quests once BC comes out that the aggrivation just isn't worth it. For the first 5 levels or so, I wouldn't mind spending all my time in new instances rather than competing a ton of other people to collect / kill random drops / mobs. I don't mind going back and grinding rep if need be later on once the areas aren't so overpopulated.