I have to say that I've tried questing and boosting in Westfall to get new toons from 1-10, and Westfall wins hands down. I'm by no means fast about this, but with the macro/addon and UI setup time on the four new guys I was able to get them from character creation to level 10 in under 2 hrs. The spot in Westfall is on the NW beach, due north of the letters "AN" in JANGALODE MINE on the world map. There is a group of yellow crabs that respawn faster than you can kill all of them. I just park my newbs on a log thats centered among the crab respawns and take out crabs non-stop. The area of crabs has a patch of murlocs on each side of it, but they're far enough away that the only thing thats ever agro'd my lowbies is a Rare mob (a murloc named Brack). Anyway, huge thanks to Slats for the rundown on Instances. My new guys just hit 20 and I was debating between Stocks and SM.