Need advice on efficient RAF leveling

[MiRai]

I'm new to WoW (I have a level 37 Druid) and multiboxing. I want to level 2 new toons to 60. Since I'm getting 3X XP it seems like it would not be wise to do all the quests in each area.

Not unless you like doing quests that are 'gray' which you don't get 300% XP for.

But I don't know how to go about leveling in an efficient way.

There is no secret path to leveling nor is there a big list which tells you exactly which quest to do. People tend
to skip collection quests because they can be quite annoying, however, you can't skip all collection quests
depending on the zone you're in or the quest chain that you're on. There are many different paths to choose
from while using questing to level that each person tends to do it their own way.

Since Blizzard has reduced the XP needed to level time and time again and has recently increased the level at
which RaF cuts off, leveling (regardless of method) is easier in every way.