I'm somewhere between 5'0" and 5'1" in height without shoes, and have some ballroom and latin experience and am in my 20s. Heightwise that would put me with Vincent but that 'I'm so adorable and good looking act' would drive me mad and I'd be rolling my eyes within the first few minutes so personality wise not ideal. I'd probably get on ok with most of the other pros but I think Brendan would be just too tall!
Given all that, I think my ideal partner would be Pasha. I really liked Pasha's work ethic, choreography and caring nature towards Chelsee. I think it would work heightwise as in shoes I would be taller and I don't think I'm much shorter than Chelsee.