i use Jame's horde leveling guide, its free, just google it
the idea of the guides arnt to help you level, but to help you level as fast as possible, and personally i like using jame's guide, maybe its caus eim still new to wow, but personally i dont think i would be 50 right now if my life depended on it if it wernt for the guide i use.
my friend actually started bragging about how he plans to catch up to my level with his newly made character in a matter of days, saying he had some "Secret weapon"
i asked him wtf it was...so eventually he came over and showed me
he BOUGHT Joanas horde leveling guide...herse how the conversation went:
Me: ...
Him: awsome isnt it?
Me: dude, why didnt u just use jame's horde guide like i told you, its free.
Him: Yeah but this ones alot better dude! i mean check it out!
Me: ...one sec *opens both guides up to see where they say i should be*
Me: see dude? they both say i should be in the same area doing the same thing
Him: SEE DUDE! I TOLD YOU IT WAS GOOD!!!
Me: ...thats not the point..i admit its probably good, the point is that they SAY THE SAME THING MORON, ONLY MIENS FREE.
Him: no dude trust me mines better
so then a few more minutes go by, and i decided to search around a bit, within 10 minutes i -Downloaded- the guide he paid 40 bucks for. he felt pretty dumb.