The guys who make the skins. Adds so much to the game and doing it on their own time.
The TA guys who put time in on their own to help the new guys get the hang of it
The CM guys who put together the scenarios, FSO, Snapshots, AvA etc.
The Map makers who make the view that much better to fight over.
Too many names to list individually. All a huge benefit to the community and the game.