Right, because there is alwayz the option to turn the music off. And besides, a game wher you kill people that has powerpuff girls music would be quite funny. And ont pull this crap on me "what if there is no options" there always will be. So for me, game music is NOT AT ALL a contributing factor.
Well the character design is also important. That is not the best thing that makes a game good in my opinion its usually the storyline that makes a game good.