Horde Power Leveling Guide - How to Choose the Best One
Finding a horde power leveling guide doesn't need to be hard. There are plenty of guides on the market, you just need to decide which one is the best for you.
The major key you need to look at is if you have to be a certain class to use the guide. You would be surprised how many guides were designed around hunters and will have rough patches for some classes to complete. If you wanted to level a hunter, then a guide like this might be good. But if I am going to spend my money on a guide I want to be able to play any class.
Then there is the whole issue of grinding. There are plenty of reasons that grinding is a good thing at times, but leveling should not be one of them. You will be spending plenty of time grinding when you reach level 80. From reputation grinding, gold farming, to just farming for that rare pet you are going to be grinding a lot already.
When I look at a horde power leveling guide and see that they are telling you to grind at all, I will put the guide down and look for another. There is no good reason why you should have to grind while leveling from 1-80. They have lowered the XP needed per level from 1-70 to the point that you simply will level faster than the questing will allow already. Questing for XP is the fastest method, period. When you consider that you get 10k or more XP per quest starting in Outlands, it doesn't make a lot of sense to grind.
Leveling Guides should help you level at the fastest pace possible. Leveling from 1-80 in 7 days or less should be the norm. There is no reason you cannot level this fast either.