MS girl all my life (37)-my mother is mama, and I am mama to my kids. My father is daddy. Ds12 calls dh "dada"-always has, and dd10 calls him daddy. Katie isn't really talking yet! Dh claims she is calling him dadadadada though!
Dh doesn't really talk to his mother much, but usually calls her "mom." His father is dad or daddy.
Neither of us has ever called our in-laws by anything other than their names, or the names the kids call them (granny, pa, Big Mama (my 90 yr old grandmother), nana, papaw, pawpaw, mawmaw)