Which of these Skull candy earphones is the best? Smokin buds, Titan, and Asym?

I am looking for a really nice new pair of earphones that have very good sound quality and will last. I looked in to Skullcandy because i know they have good earphones, and i found these three models that i've been getting good words from. Can anybody that has owned these tell me exactly all the pros, cons, nice features, etc on these? i'm specifically focused on the sound quality which to me is the main idea but also tell me if they have other problems. Appreciate the help.