As unbiased as possible in any order below. When I say nerf/buffs I mean minor reductions in damage or healing 5-10%, this is the most fun I’ve had in pvp since Cata and believe these are the things to be looked at going into the tuning patch.
Mage: Triune, Combust crit damage since it’s off global.
Priest: Mindgames initial damage nerfed, greater fade one minute or even higher. Buff mana efficiency on disc and holy especially the base cost of shield.
Warrior: intervene, commanding shout, disarm, reflect, something in utility kit needs longer cooldown or hit their damage by 5 percent similar to ww monk.
Paladin: nerf hpal mana efficiency and ability to just only cast wogs and shocks to full heal (prot, ret, hpal). Force holy to cast occasionally outside of divine favor and get them to actually have to fake cast.
Hunter: no nerfs and buff rapid fire - OR* (Edit) Buff Pet Survivability by 25% Damage Reduction to shore up their glaring weakness.
Druid: feral nerf off-healing and buff their overall damage outside convoke or kyrian goes, convoke needs to ramp up not one tap in under .5 sec, balance cannot full moon at all or triple star surge in a row on convoke, buff rdruid dispel protection higher healing procs for ppl stealing or purging their hots.
Warlock: nerf corruption slow and buff their defensive shield to every 2 min. The longer the expansion the more painful this legendary will be for everyone. Look at their damage at awc if competing as it has appeared oppressive for non melee cleaves/rmp.
Shaman: nerf enhance healing surges, chain harvest heal but not their damage, look at and nerf ele stormkeeper crits, Resto shaman nerf windshear to 20-25 seconds.
Rogue: nerf master assassin and buff damage thresholds out of the 100 percent crit evis/ss/echos, nerf damage done in duel, but prevent aoe heals outside of it to heal either players.
Monk: buff mw survivability and mana ratios, cocoon needs to be buffed. Wind walker damage nerfed by 5 percent minimum.
Death knight: frost is at a good spot increase deathstrike healing by 30-50 percent for both specs but decrease it’s damage to negligible. (only the deathstrike damage - keep everything else in their kit the same)