Your title makes it sound like you are travelling from Kona to Chef Mickeys, but I see you mean, actually choosing Chef Mickeys over Kona, right? If not, I'm not sure what Kona has to do with it? Kona has much better food - it is a must do for us, as it's great food, atmosphere and service!
If you mean, will you like Chef Mickeys, as you normally dine at Kona, I'm not so sure, as you then say you didn't care for Crystal Palace, nor do you like buffets. It's the same thing as Crystal Palace - buffet meal with characters. You say 7:05 when they start, so I'm assuming you mean, breakfast?
Breakfast is normal breakfast food - nothing special at all with toast, fruit, bacon and eggs. Crystal Palace is a better buffet all around over Chef Mickey's though, as it's better organized, good service and food is much better (better for lunch and dinner, as again, breakfast food is nothing special).
Based on the info given, I'm not sure you are going to care for it, Tiger