Guild Wars 2

Countdown – /countdown [num] – Useful for starting raids, making sure everyone is gliding at the same time, helpful for audio imparied

Build Templates – Reduces downtime between fights if players can have pre-saved trait/gear swaps

Restart /Start At / Spawn At – Useful for re-doing/spawning bosses you’ve cleared that week for teaching/practice runs.

Other features not directly tied to raids

Better in game guild browsing / sorting – Players need a decent spot to find guilds that match their time/playstyle and personalities.

To add to this list, I really want a user preference for: “Always show health bars”