I like just about every kind of music out there except lout metal screamo where I personally think it sounds like garbage.  I don't really like classical too much and I also don't really like country. At least not country the way it is today.

But whatever that music is in Fallout New Vegas that's kinda country/westernish I actually like it.  Some of it is new music made for the game while others are actual songs from back in the 50s and 60s.