How about metrics like answering the question of, "how much of the coin exists?" Or metrics like, "how understandable and simple is the overall protocol and mining scheme?" Or "has this chain ever broken it's own rules and rolled back transactions at the behest of its benevolent dictator?"
Spoiler: Bitcoin wins on all of those. The market cap is better for a reason.
Spoiler: Bitcoin wins on all of those. The market cap is better for a reason.