Topic.

quest and que for dungeons as you quest, i hit 100 from 90 in 7 hours last night

He said 85-90.

If you don't have the add on for pandarian treasures, get it. I got about 50-85k XP per treasure plus rare spawns

Quest via jade forest 85-87
Than go to dread wastes and farm the Elite Scorpions (90) till level 90 I got roughly 12.5k XP a kill and took me about 60secs to kill each one as a shitty mage

depends, if you are a tank que dungeons i lvl'd my pally from 85-100 in about 12 hrs of tank que's with few quests in between.

i just spam dungeons

this doesn't work unless you tank or have a friend tank from my exp.
when i leveled as heals i had 30+min que's same as when i dps, so i respeced to prot and instant que

when i leveled my mage, i queued dps and queues were <5 minutes... it depends what time of day you queue i guess.

i guess, i que'd at all times of the day though because i thought of that too.

I can say the fastest way 90-100 is by doing all the bonus objective areas while doing some quests and gathering all the treasures you encounter on your way. Should take around 45min per level. Dungeons are much slower