Nostalrius Begins - Quality wow vanilla realm (1.12)

hello , im coming to nost from retail , want to experience vanilla once again. i plan on playing a warlock so my question is are warlocks overplayed on this server or its their pop average. also wich are the least played classes.

thanks all for your answers

Decent amount of warlocks on horde side, but they're by far one of the least played classes on the alliance side together with druids.

As said above warlocks are more played on the Horde side. Though warlocks are usually a good class to play for their utility.