Re-learn Alpha. She's still totally viable to me. Momiji is a better choice than Ein... not sure about Eliot, haven't heard much about him or played many.
Free Step Dodge
deathofaninja
Forlorn Penguin
Tengu.
Pictured Mind
Do whatever you want. If I have to vote, Momiji. She's great. Alpha would also be a good option, DOA tastes better with a bit of salt.
Nightpup
I enjoy playing Momiji but I feel like she just doesn't have enough moves to mix up with.
Nightpup
I enjoy playing Alpha-152 but she's just getting nerfed more and more, and people hate me for using her. Eliot was my main in DOA4. I enjoy Ein but again, I feel like he lacks mix ups.