Why are DO's nicer than MDs?

Question

I have a couple docs of each type and the DOs are nicer and just as skillled. why is that?

Answer 1

Just happened  to be the people you met.

Answer 2

I know lots of MDs and lots of DOs (hundreds), and don't see the same difference that you do with your smaller sample size.

I know nice ones and nasty ones of both species.  Same thing (for the most part) with skill.

Answer 3

I know a lot of nice MDs and a  lot of nice DOS.  

If we are to make generalities, perhaps the "hollistic" approach that DO schools take attracts a type of physician who may have better bedside manners?