3 comps
5s Melee Cleave
The default competitive 5s archetype: stacked melee burst (warrior + rogue) behind two or three healers. 5s in TBC is less rigid than 2s/3s — think in team archetypes, and melee cleave is the highest-floor one.
Rogue / Holy Paladin
Ride the tankiest healer in the bracket. The paladin's Freedom and Blessing of Protection keep the rogue glued to a target while the paladin simply refuses to die. Strong into cleaves, weaker into Mana Burn.
Shadow Priest / Rogue
'Shadow cleave lite.' Two burst dealers with no real healer — you kill fast or you lose. When the rogue's stun lines up with the priest's Shadow burst, almost nothing survives the window.