The linear quest models aren't a good idea. I liked when I could quest with friends and not have to be in the place, same time, doing the quests.
That's one thing that was good about wrath. The questing was easy to jump around on. Now it's pidgeonholed.
i disagree... questing in wrath was slow and in general annoyingly boring... i found the questing in cata to be faster, and a lot more enjoyable with a good flow. the phasing part could use some changing. but in general cata questing has been great.