Guild Wars 2

Being able to view map queues might be useful for those deciding which server to go to.
It would also be an interesting stat to compare match scores against.

I can see how it might be exploitable for gauging enemy movements ( if the zerg moving causes a queue), but it would be a level playing field for each server anyway.
Maybe update once/tick or something so there is a buffer on being able to use it as a precursor to an attack on another map.