i have played war n u shudnt q without others as it is a support class as previously stated and the charges have more versatility making them better in almost every situation plus the stuns effect your team more and allow for helping of the damage on targets
charges can be used offensively or defensively and have more of an effect on pealing as it is a stun, it also generates rage which is one thing warriors are hurting on at the current time where as if you have hstring or PH you would be spending rage on those slows rage starving you further
so u see, slow is inferior
: )