What spec to play
Immerseus - Doesn't matter, easy fight
Fallen Protectors - Combat cleave wins
Norushen - Doesn't matter, easy fight
Sha of Pride - Doesn't matter, easy fight
Galakras - Combat cleave wins
Iron Juggernaut - Doesn't matter, easy fight
Dark Shaman - Doesn't matter, easy fight
General Nazgrim - Combat, longer stuns for adds
Malkorok - Doesn't matter, easy fight
Spoils of Pandaria - Combat cleave wins
Thok - Mutilate, rolling Ruptures during kite phases pulls the spec ahead
Siegecrafter - If going up every conveyor belt, Combat. If not, Mutilate/Sub offer very strong cooldowns for when you do go up
Paragons - One of the most annoying fights ever designed, Mutilate/Combat are better than Sub due to constant positioning restraints
Garrosh - You'll see the vids