get the quests for AV, they help big time, and just wait for dungeons, though level 50-57 the dungeons are not small, and take their fair amount of time
Dungeon when you have rest
Quest while in que
Do all group quest you can ( get a friend to destroy them for you)
And do Isle of conq and AV when you have no rest.
Requires 51. If you're not 51+ then IDK. But yea AV queue, or if it's call to arms, queue for that and then AV. while questing. You will just get bored doing the long ass dungeons that literally have no pay out, takes to long for too little XP. You nearly triple the XP in AV. Not to mention there's a point in leveling, if you do dungeons, that you're just stuck with BRD Upper City and you cant complete it due to no one actually doing the quest for the key.
Best place to quest. Plaugelands, yea it's a TON of going back and forth, but it's a nice place to grind out kills if your queues are going too fast.
Fastest way to lvl 1-80 by yourself
1) Download cartograhpher. (Mainly because it will list lvl ranges for all zones. Any add-on that does this works too )
2) Level in the zone that matches your lvl range
3) queue for dungeon while you quest in the zone
This is what I do as a DPS as queues take a while.