Psylunne

So, in 10 years i played WoW i only had 2 characters; paladin tank and priest healer. Got a bit sick of waiting for a place on the new server so I´m just going to enjoy this server :) Before i start ans since there´s no WoW cencus for the server i was wondering what this server needs the most ; leveling and in endgame even: Tanks or Healers? I enjoy both and cant decide, so I guess that will be the decisive thing before i start. thanks in advance!