Believe it or not, the Moon would be much more difficult to colonize.
With absolutely not atmosphere, you're totally naked to the harsh environment of radiation from space. Mars has a thin but substantial atmosphere, and easily accessible resources.
With current technologies, the only way to colonize the Moon is to do it underground - a non-trivial engineering hurdle to say the least.
I have no background in CS or Math, but a lot of philosophy. In other words, I'm a highly interested layman. What's my best plan of action to understanding Godel's theory? Maybe the best approach would be an entry level book on CS?
To be clear, it's not because they're less flawed per se, but less symmetrical. Physical asymmetries indicate poorer genetic fitness, and we interpret this potential genetic detriment as flaw.