One thing I have to mention at this point: It’s okay to not like an accent. This is a matter of taste. You like what you like, and you dislike what you dislike. If you think an accent is ugly, or lovely, that’s completely your prerogative. On the other hand, patterns of likes and dislikes can be telling. If all the accents you dislike are from cities, maybe you’ve got something against cities or the people who live in them.