You should buy a guide that has you leveling only with quests. While it is nice to do some instances and grinding, until the later levels you will level much faster with just questing.
If you see a part of the guide that says "grind here until..." you need to throw it away. You will be doing plenty of grinding at 80 without needing to do more to get there. Unless you have a specific reason to grind on a certain mob or in an area, you should be questing for max XP.
I always look for a talent guide as well. I like to level new characters, but always find myself wondering what I should spend my precious talent points on. There are tons of ways you can spend your points, but I want the best ones for grinding. I have tried looking on the web for talent specs, but all I end up finding are forum debates about which is best. The problem is that they rarely show the actual spec, and doing an armory check on the player just shows their current spec (which is usually a PvP or Raiding spec.) Many of the good guides out there come with a talent guide.
I also look for an in game guide and addons to show me where to go. I have used free resources, like Questhelper, but often find them more confusing than anything. It will show you all the locations with an arrow pointing to the closest objective, which is often not the best place to go. They help, but most of the guides come with one that is loads better.
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.
If you have any questions what guide to choose I have one you will enjoy and will help you much like it did me. Click the next link for my Zygor Guides Review.
You can also check out this one to see why you should Buy Zygor Guides today.
This article is free for republishing
Source: http://www.articlealley.com/article_1131461_10.html
Source: http://www.articlealley.com/article_1131461_10.html