As a fury warrior i love having my battleshout when i start the arena, but my teammate love having commanding shout. here is the lil trick...it is not really a hugo one but it is useful.
ONLY TESTED IN LORDADEON(sorry for the typo)
-say to your team to go in one of the corner
-cash commanding shout
-they must stay in the corner
-go in the oposite side corner(fartest one) and cast battle shout
they should have commanding shout and you should have battleshout
not the best exploit but i found it nice...
P.S. can use the shout you want