Decision on who's the best comes down to who I'd think would perform well in a hypothetical 2018 twink cup if applicable for the class.
Druid (Feral): Nature
Druid (FC): Fearthebuns
Mage: Mvq
Hunter: Stabilt/Yowza
Warlock: Flamer
Priest: Aoitsaka
Rogue: Saxxon
Warrior: Yowza
Paladin: N/A...