The board depends on what you are using it for and your weight and flex you want:
RC - flex that goes up with size. Mountain board twin - BIG nose and tail kicker.
DK - flex that goes up with size. twin - SMALL nose and tail kicker. Mellow mtx. wider waist
TR - Stiff flex throughout sizes. BIG nose and tail kicker? wider waist
TRS - flex that goes up with size. not sure on the nose tail kicker. tnt base
As you can see they are all different boards with different flexes and profiles.
Like the other people said: C3 Jamie lynn 2013 classic and the C1 La Nina least amount of rocker.