I like powers of two. I didn't know that though until I learned what a power of two was. And even then I had to have ti pointed out to me. When it comes to odd numbers, I tend not to like prime numbers, but that is only because I know that I can't divide them. But if you don't like odd numbers because they're "unbalanced" I am sure that you can come up with a much better excuse. Try going by my approach and saying because you can't divide them by two. Or say that you can't make a odd number by adding two evens, but you can make an even by adding two odds, therefor making evens superior. But "unbalanced" only works in one dimension. Try making a balanced cross with an even number of blocks and you will know exactly what I am talking about.
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I just realized that I couldn't possibly realize what I just realized.