Although metric is much more simple and easier to remember, I prefer the Imperial System of measurement.
Metric pisses me off because it's so step by step. Instead of being 6 feet tall, he/she is 1.85 meters (I think that's right). It's not a 16 gallon fuel tank...it's a 46.8 liter fuel tank. Measurements for smaller numbers aren't used as much as in Imperial.
I know the scale from 1-100 makes more sense, but fuck it anyway.