Stranglethorn Vale (North) Questing

So, headed over to Nesingwary's Expedition in northern STV and did the animal hunting quests there - at worst I was doing 16k xp/h, at best - after handing in the last quest I did - It was close to 21k xp/hour for the session.
Now, that session was started in the camp with the quests and all quests picked up, and with a bit of rested xp to use up. On the other hand, I choose far from optimal paths in my hunting as it was a long time since I hunted here, and there was some competition about so had probably 5 minutes of downtime waiting on and searching for mobs.

Now, I believe that if the 9-11k xp/h I got doing the blasted gathering quests in Shimmering Flats, this is probably the other end of the extreme -- All killing quests in a fairly small area.

The question now becomes how to find these areas and not outgrow them to fast, after this 21k xp/hour stint (that was probably about an hour long) - The quests here in STV are now red, the mobs I need to kill are 38, which at 32 (the 'grins' dinged 32 in the middle of the run) takes close to all mana to pull off - Hardly a good use of time.

I might just spend a few runs in SM to catch up a bit in level.

So, the experience analysis so far gives:

1. Best method is questing, using the right quests in the right areas.
2. Steady and not to slow experience is doing instances that are about your level.
3. Worst experience is questing in the wrong areas and with the wrong type of quests.

The 21k xp/h seems to outshine the 18k of SM GY - But bare in mind that you could sustain the 17-18k in SM GY for hours, while the 21k is strictly depending on being in the right area and doing the right things - Also, the 21k does not reflect the time spent traveling to the area.