Definitely Cafe Mickey in my opinion!
We've done Lucky Nugget Three times (don't ask me why we went twice more after the disastrous first time but we did!) It is not good
They did have the band playing, but no can can dancers anytime we've been there, the food is average at best and at worst, cold and awful. The meat always seems tough and the burgers less than half cooked (raw in the middle!)

, the best thing were the kids chicken nuggets but who wants to pay 32 euros per adult to sit and eat chicken nuggets?!
Sometimes you have to sit on stools at a very narrow "bar-like" balcony type bench thing or you can also be seated upstairs (buffet is downstairs) which can be a pain in the backside when you have kids. Someone told me if your party is for less than 4 you will always be seated upstairs, but that's not the case, there's 3 of us and we've only had to sit there once, but complained and were moved to the silly balcony seats- dunno which was worse, those daft benches or the trek up and down the stairs!
The characters dont get round everyone every time, which is very disappointing and they tend to come out in threes at a time rotating roughly half hourly. When its busy, Characters upstairs tend to stay upstairs and that might leave some people dissapointed, and its a similar story downstairs.
I also have to say, that for me, it's dark and feels dingy. I am determined that we wont ever be back there!
Cafe Mickey is much lighter, brighter and better all round- pity it's in the village and not inside the park- which If I am completely honest, is probs why we've continued to waste our money and do Lucky Nugget
Inventions is also excellent and I can highly recommend, but please, save your money and give LN a miss really, it's just pants!