With the updates to quests 20-60, you should be able to selectively ignore most of the collection quests that don't lead into a nice chain or loot upgrade. Buddy was telling me today that he made 41-43 in the new Dustwallow quests.

I'd suggest you look up James' alliance/horde leveling guides (google it). I use those and they are awesome. As I said, you can pretty much forget about a lot of the more painful collection quests. Also, a lot of the quests he has you skip you can do now that they are non-elites (like Stromgarde, the ogres in STV, the ogres up above TM, etc.).