Definitely born as a ciswoman.
Positive reasons to start life as a ciswoman: I would not have been sent to conversion therapy when I was 5 years old and lost a year of my life. I would not have spent 60 years of my life not fitting in with male or female groups. I would not have spent the 20 years before I came out depressed with frequent thoughts of hurting myself. I would have had a female size body and not male size. I would have been able to have my own babies to birth and nurture. I would have had a husband/partner place a wedding ring on my finger. I would not have had to deal with gender dysphoria.
Negative reasons to start life as a ciswoman: Waiting over 60 years to start my transition has given me more appreciation of being female.