With RAF + BOA (Not sure if they stack, but I have them), and assuming you do the quests in each dungeon, my path in WotLK is (starting at 70):
UK
Nexus
AZN
Old Kingdom
Zul'drak
Ring of Blood thingy.
Instance in Dalaran (forgot the name)
Other troll instance (again forgot the name)
Halls of Stone
Halls of Lightning
UP
I usually need to reset UP, go in again and kill up to the first boss and then I ding 80.
Did this for a few weeks and got all 5 accounts full (10 chars at 80+ each).
And yes, felt like killing myself when I was close to the end, but I kept hearing Ualaa saying "Told you to level as many during RAF, didn't I?"