Best Headphones for Introverts (Sennheiser HD280 v. Audio-Technica ATH-M50x)

I'm an introvert who is also a fan of classic music, jazz, and house music. The type of house music I listen to has a lot of range and layers and less bass, so I need the best head phones. I need my head phones to block out background noise, sound fantastic, and provide value for the cost. Just so...