There are a lot of World of Warcraft leveling guides that do a great job of helping you reach the maximum level in a short amount of time. Most of them are based on quest stacking, and a lot of them have a tonne of features that make the job really easy. Zygor's Guide stands out more to me than other guides for a few reasons.
It's best to illustrate this as a table. Below I've set up a short comparison of features that Zygor's has compared to other popular WoW guides.
| Features | Zygor | Joanna | Team iDemise | Dugi |
| Complies With Blizzard's Addon Policy | Yes | No | No | No |
| Custom Built In-Game Mod | Yes | Yes | Yes | No |
| Directional Arrow in All Game Zones | Yes | No | No | No |
| Automatic Quest Tracking | Yes | No | No | Yes |
| Detailed Quest Information | Yes | Yes | Yes | Yes |
| Custom In-Game Talent Advisor | Yes | No | No | No |
| Offers Alliance and Horde Guides | Yes | No | Yes | Yes |
| Includes Class Quests | Yes | No | No | Yes |
| Easy Installation Wizard | Yes | No | No | No |
| Remote Control Installation Assistance | Yes | No | No | No |
| 24 Hour Technical Support | Yes | Yes | No | Yes |
| Community Forums | Yes | No | Yes | Yes |
