Ever since World of Warcraft was released, many WoW Horde guides have come out as well. Some are free, but for the best ones, you usually have to pay.
In general, the best WoW Horde guides have certain common features that make the difference. In this post I'm going to point out those features for you, helping you establish if the WoW guide you're looking at is worth paying for or not. Since leveling guides, WoW gold guides and WoW PvP guides are the most wanted by players, I'm going to focus on those.
How to Choose Your WoW Horde Guide for Leveling
First of all, never go for a PDF written guide. Although a guide like that can be printed, I doubt that you would want to have it in solid form. The best WoW Horde guides for leveling are the ones that are installed and work like WoW addons. These are usually plugged into your UI, and connect to your maps. Most of them are step-by-step written, and have automatic quest trackers. This is how a leveling guide should be, if you want one.
Also, if that particular guide focuses on questing, but also covers dungeon leveling and battleground leveling, this would be a plus, because completing a dungeon or a BG from time to time may provide you with a nice XP boost.
How to Choose Your WoW Horde Guide for Making Gold
There are 3 main methods to make gold in World of Warcraft:
Auction House trading - which involves buying and reselling stuff at AH for profit;
Farming - which involves killing various mobs for valuable loot, then selling it at the AH;
Gathering and crafting - method that requires you to either gather materials and sell them as they are, or craft stuff from them and sell the final products;
Now, if you want one of the pro WoW Horde guides for gold, it must cover all these methods. However, you should know that the most profitable method to make gold is the first one. That's how the top WoW players make their gold.
How to Choose Your WoW Horde Guide for PvP
You don't need extreme PvP teaching to play battlegrounds. In fact, in some BGs like Alterac Valley chances are you won't even be attacked by Alliance players. A WoW PvP guide should focus especially on the Arena content, because that's where the player's skills matter. Therefore, you must make sure that the guide you're looking at focuses on the arena content, that it tells you exactly what macros and keybindings you should be using to maximize your PvP gameplay, and how to play in any type of arena setup, against any type of arena setup.
Needless to say, no matter which WoW Horde guides you want, they must come with free updates, because it would really suck to pay for new content every time. Also, look for at least a 30 days money back guarantee, just in case it turns out the guide sucks.