In entirety we have to many minecraft maps and they're getting stale for regulars. New comers who shouldn't even be playing this game due to their age and maturity level in general are out weighing the votes of regular server patrons.
Beyond this; the textures used in most minecraft maps that are daylight styled are a bit bright to look at for amounts of sustained time.
We at least need a lot more variety as a lot of the maps on the rotation are Minecraft.