There is no way to prove that one person's music taste is better than the other because...well no one's music taste is better than anyone elses. We all like what we like and we're hardly going to force someone to change what they listen to because you think you listen to better music. Everyone thinks that their own personal taste is the best because it's just their opinion but there's no way to prove it. One of my friends believes her music taste is perfect and so she insults literally any musicans she hates which frankly is just ridiculously annoying. She can't just say she has the best music taste because nobody has it best. It's all just opinions