I like to quest, if you have RAF then skip anything you don't like.
Without RAF, you might need to do some collections to finish an area.

Any of the quest stacking guides will help.
The Jaime version is free for both horde and alliance.
The Zygor, is imo the top paid guide, with an in-game addon interface telling you the next step.
Run it on one toon, and have the others do the same thing.

You can PvP and run Dungeons to supplement your experience from quests.
Heck, you can even watch a movie, and spam attacks on fast spawning mobs with 20% of your attention on the game.