How can I compare cryptocurrencies against each other?

As a keen investor in the world of cryptocurrency, I'm often faced with the dilemma of comparing various digital currencies to determine which ones offer the best value and potential for growth. Could you please elaborate on the key metrics and factors I should consider when comparing cryptocurrencies? Specifically, I'm interested in understanding how market capitalization, trading volume, technology behind the coin, team behind the project, and community support can influence my decision-making process. Additionally, are there any other critical factors that you would recommend considering? Your insights would be invaluable in guiding me through this complex and ever-evolving landscape of digital assets.