What is more important in shaping one's personality Ascendant or Midheaven?

Question

What is more important in shaping one's personality Ascendant or Midheaven?

Answer 1

Without any doubt there is no single factor more significant in your horoscope that your ascendant and the lord of your ascendant.

The midhaven can only give results within the context of the boundaries set by the placement of your ascendant ruler.

Answer 2

The ascendant.  The ascendant is calculated from time of birth and the first house represents childhood in the whole life cycle.  Childhood, or more specifically, the first 5 - 10 years, is when the personality is formed.  

The midheaven is the public persona - a later period of life.