First post! Hi all!
My opinion would be:
Server with > 10 people:
d2, season, mill, nuke, train, inferno
Server with < 10 people:
same rotation + admin throws up votes for other maps.
I think aztec and cbble are not as popular as you all might think. They are popular with the regulars here but outside this server...not so much. (I LOVE THEM)