1. Character progression/development: achievements, points, levels, ranks, logs, chocobo, titles, mounts etc. all can be done on one character.
2. Main story and side stories.
3. Class synergy and PvE: it's quite a deep game even at the easiest level. I only wish the GCD was shorter.
4. The world, monsters, glamours, houses all look stunning.
5. Roegadyns.
6. Community events, both SE-made and community-made. Fun to follow even if I don't participate.
7. Transparent development process. We know what we are getting, when and why.

Also, not the most important aspect but should be noted:

Quote Originally Posted by Zazriel View Post
8. Its not WOW lol