Here are my thoughts between the two:
We liked CM for the variety in food choices. Character interaction was fine.
We liked LTT for the AWESOME character interaction, the more relaxing feel, and the fact that dinner was brought TO us.
We had our two dd's with us, 7 and 2 at the time. When they are that age and you eat at a buffet you might as well kiss a relaxing meal goodbye. Dh and I don't even get to see each other at a buffet meal because one of us is always up getting something for the kids or ourselves. We feel like pulling our hair out at the end of the meal.
So, for us, even though we thought the food at CM's was better (mind you, this was a year ago) and we really liked having a variety of food to choose from, we preferred LTT because...
1) ...it was quieter,
2) ...the characters were MUCH, MUCH, MUCH better, and
3) ...Mom and Dad got to sit down together at the table and chat!