Well, I haven't been to either, but 'Ohana is a character breakfast with Lilo, Stich, Mickey & Pluto.
'Ohana dinner has family-style type skewer meals in which they keep bringing you food. No menu. First salad, bread, noodles, then skewers of turkey, beef, shrimp. Then the bread pudding which everybody says is heavenly. Supposedly at dinner, there are coconut races, hula hoop contests, and just overall fun for the family.
We are trying 'Ohana for dinner in Sept.