Actually ninjas take a dps loss if they have to do their own debuff, that's less mudra's and aeolion edge's

Personally I enjoy War and DRK over PLD. That said I love PLDs support abilities (I'm a support freak I enjoy keeping the party goinghence why healers and tanks are my primary classes) are amazing.

The best out of the three though, eh depends on the encounters tbh. Though for me I use War for all encounters, because War will always be my lover. (Though I may leave her for DRK ;-