You hate polka? Inconceivable! I perform regularly in a local polka band during OktoberFest season, make a ton of money and have a great time. I'm not the accordion player (I sing in German and play tenor banjo)' but our accordion player can tear tha thing up. We not only do traditional polka music, but polka versions of "Sweet Home Alabama" (Sweet Home Bavaria), "Play that Funky Music, White Boy" (Play that Polka Music, Weiss Junge), and bunches more.
I have heard accordion played in many other styles, but, to me anyway, it just seems to sound best when backed by an oompah beat.