I would...HOWEVER...I probably wouldn't date anyone in the "middle andro stage" of passing. I'd be too worried about myself being outed in proximity to them, and being bi I would also question what parts of them I found attractive. One thing I have noticed is that my brain works on a very binary level...so even though I am attracted to both sexes, my brain will assign a male or female tag to them. I'd feel really bad if I dated an early stage FtM and found out I was attracted to his feminine appearance.
That said, personality always dominates my choice in relationships. FtM, MtF, bio male or female, depends if I enjoy spending time with that person.