If you're paranoid about AES, use Chapoly (or just use Chapoly because it's in many ways more convenient to use than AES). Don't build elaborate cascades (all cascades qualify), and don't randomize S-boxes.
It is hard enough getting these systems right when you're playing exactly by the book. If you're designing a cryptosystem and you're not a professional cryptographer, the list of things you should be worried about getting wrong is very long and very scary.