Dont have much experience at end game tanking, ive got an 85 LM and an 85 RK so hows this -
Battle Prep - Shield Mastery, Dance of War, Conviction, EoB
Use EoB, War Cry, Goad, EoB, Fierce Resolve, EoB, Then Perseverance line (sh-sp), Goad, if i need power (Dark before the Dawn) or morale (resolution) and then use again, if not EoB, fierce resolve, EoB, shield mastery, then Impressive flourish line (sh-fi). After that its whatever the situation calls for, if in 6/12 mans prob aggression or something