torsion bar ride quality vs coil spring

I am interested to hear opinions and perspectives on the benefits of the torsion bar suspension. I come to the FMJ cars because I like Mopar's engineering background, and I've had dodge trucks since the 1990's.

That being said, I am not clear as to why Mopar decided to use a torsion bar front suspension. I am sure they had good reason, and interested to hear any opinions or experiences you may have had.