Luke Skywalker: A better system would be based on 12
You mean, a system with 12 inches in a foot, and 12 * 440 foot in a mile? Or with 12 pence in a shilling? Or 12 troy ounces in a troy pound? Or 12 (US) gallon in a winekeg? Or 12 points in a pica?
I prefer the metric system not because 10 is preferable over 12 (probably not), but because it's consistent. It's based on 10, and only 10. And it has just one system of weights, and just one system of volumes.