Who or What Determines a Hit Song on the Radio?

Outside of talk stations, country music is the radio format with the most stations dedicated to it.  Country radio charts (which determine what a number one hit is) are split up into two levels: Major markets and everybody else.  Is this right?  Is it another example of corporate consolidation gone awry? Is it good for the country music industry?

Matt Stillwell - Shine (Video)

Here's the video for independent Matt Stillwell's national debut single.

Matt Stillwell - Shine

Here's "Shine," The first single from Matt Stillwell's upcoming third self-released album.  It's as good as anything coming out of Nashville these days.