What are you basing the term "better" on? Which one was a better artist? Which one was a better person for not ridiculing the other? I think both Da Vinci and Michelangelo were great artists, few will deny this, although some may choose one over the other. Ultimately, do you want History to be the judge of who was "better", do you want us to be the judges of who was better, or will you be the judge?