Look, i dont have the best tank gear, i dont even have a belt with an enmity materia, and i assure you that using the proper skills of paladin you wont run out of enmity of course, even with a good gear and being warrior DD's should and must be cautious with the enmity they generate, using phalanx and spirit within, with rampart and sentinel on, gives you a lot of enmity, i use often war drum too, so at the end even burning ifrit really fast with BLM's, i had an easy time tanking it, i didnt loose ifrit at all, and i did the run several times, the party had good DD's.

I know that having enmity+ on the sword would help more, but pld already has good enmity skills, have you tried healing a party member with Holy succor?