I liked the achievement system in WoW. They were account-wide and you had interesting achievements like beating a boss a certain way or performing certain feats. For example, they'd be something like "Defeat Ramuh in Eden's Verse: Fulmination (Normal) without anyone in the raid having more than 2 stacks of Surge Protection at any time." Something you'd do as a pre-made group or with your friends.

I also liked how achievements earned would be broadcasted to your guild (FC) and not just to those around you. Certain server firsts would be broadcasted to everyone, like first group to clear Eden, or first person to reach level 80 on a particular class.

And I agree having more things to spend tokens on would be nice.