Viable 5 man melee setups for PvP

[Apatheist]

Just a full feral tank spec. Something like: https://classicdb.ch/?talent#0zLVcoZxxxscMdtL

People often overlook improved thorns in vanilla. It's actually pretty solid threat builder as a tank. You deal 130% threat with all damage in bear form, including auras, so between ret aura and thorns it'd be something like 50 damage and 65 threat every time a mob hits you.

You can also get a few items like the cloth helm from the last boss in Gnomeragen (forget what it's called) and the ring from the golem boss in BRD that has armor and does damage whenever struck. Gift of arthas is a cheap consumable that applies a debuff to everything that hits you that causes threat, crystals from Un'Goro, etc.

Then just spam swipe/maul.