I like a 2 man hunter team you got good tanks if you use the bear he gets an aoe aggro right a way and at lvl 20 you get viper you can live in viper with full mana all the time and start every aggro with a mend pet and never suffer down time and the dps is still decent if you spec BM its all about those pets OH and at pet lvl 44 if you plan talents right you can get a second pet aoe that also increases threat
Thats 2 aoes and almost invincible tanks you can 2 man most instances just over lvl
Like say Ragefire to start with at lvl 15 and all the rest just slightly above lvl for them