I'm having my now annual TGGF cheating issues (I define cheating a little differently, basically being "In A Relationship" without telling me first. So I can tell you why that's stupid). At SCCATL I met an Atlanta crossdresser who goes out trans-scoping in guy mode (he thinks I'm a great wingman). He tells me that MtoF's love "masculine"-looking men because they (it gets confusing here) make the Tgirls feel more feminine and they don't want to be reminded of what they were before [EH?].
My take is this: Daddy issues. The Tgirls I've gotten to know have some abuse or abandonment issues from the time they were young boys, and seek a "Daddy" to take care of them. Better theory, you think?