Prishe is kind of cool. Her Auroal Uppercut (at least), can create a Light chain following Fusion as early as the mid to upper 30s at least (I was a lvl 38 RNG, using her and Iron Eater. I used Dulling Arrow, Iron Eater followed with Shield Break to create Fusion, and the Prishe Auroal Uppercutted for Light!). As of level 44, she's done Auroral Uppercut and Knuckle Sandwich. I haven't tried her out at high level to see if she has her Nullifying Dropkick. She has MP, but doesn't seem to have a mage SJ, or at least doesn't cast spells that I've seen.
Ulmia is kind of disappointing by contrast. She's just a BRD, no SJ, and doesn't even melee. She does use Pianissimo intelligently, and seems to generally pick good songs to use, however.
Iron Eater isn't bad. He uses Berserk whenever its timer is up, and hits pretty hard.
That said, for low level leveling, Kupipi, Ajido-Marujido, and Shantoto as a team are great. With the change to BLM nukes, Ajido and Shantoto stomp anything up to Very Tough (at least) with a few nukes, while Kupipi keeps them alive. Shantoto makes a great (for some values of great) tank! Plus, once the battle is over, you can just dismiss and resummon them to replenish their MP.
Edited, Feb 18th 2014 2:00pm by MouserRDM