By "CM" I think you mean character meal, but just know usually CM refers to the buffet resturant Chef Mickey's or Cast Member, just wanted to clear that up to avoid confusion when discussing character meals. When clicking on this thread I thought you were trying to choose a Cast Member, lol.
If I could only pick one character meal it would be breakfast at 'Ohana hands down! Lilo, Stitch, Pluto and Mickey!
If you had to do a dinner I would go for Chef Mickey's, Mickey, Minnie, Donald, Goofy, Pluto.
'Ohana for breakfast was our favorite meal out off all the restaurants we ate at our last two trips, we love the "Stitch juice" I think it's mango, orange and guava, and we LOVE LOVE LOVE the pineapple bread!!! The other food is Mickey waffles, eggs, potatos, bacon and sausage, and fresh fruit: pineapple, melon, straberries. I love that it is all family style and they bring it all to your table, I felt when we did character meals at a buffet we are gonna miss some characters. At 1900 Park my DW missed Prince Charming greeting out DD at the table because she was up getting food, but they usually come back around. At 'Ohana every 15 minutes they do a parade around the restaurant with the kids, the kids get maracas and parade around with Mickey, Pluto, Lilo and Stitch. They also give you Hawaiian flower leis and take your picture when you enter and you have the option to buy it at your table. I think the pic was $35 or $37 and it's two 8x10s, one of your family and another 8x10 of Lilo, Stitch, Mickey and Pluto.