My sample size is too small to make any sort of accurate judgement.
The closest thing to a trans person I have met was a guy who dressed like a girl. I didn't know him/her that well. For one thing, I don't know if he/she actually identified as female (which is why I'm not really sure what pronoun I should be using). I don't believe that he/she had surgery, but I don't know if he/she planned to go that route. He/she still used his/her given male name.
I really don't know how I would react to a trans in terms of attraction. 1 person does not make a sufficient sample size.