Questing isn't that bad. Leveling goes so quick that you can easily ignore any collection quests, especially if you are supplementing your XP with PvP, and I'm assuming that you're running RAF, so you should get the XP bonus from that as well. Not being able to queue via the dungeon finder shouldn't stop you, either. It hasn't stopped Team Beeq or other people who run all DPS.

If you want to run a certain group, there's nothing to stop you from running it.