The first one is a stripped down production, the second is a relaxed, natural performance.
Unfortunately, that's all there is.
The lyrics are about, surprise, a southern girl. Like seriously, why do all girls in country songs have to be from the south. Why not from Japan or Mexico or something. At least that would be entertaining.
It features every cliché you can name, from her mama teaching her how to act to cutoff jeans. Then you have the talk back voice from chorus to verse saying "southern girl rock my world" (worst "rhyme" in music in my opinion).
It's not a station changer but it's not exactly great either.
Southern girls are good. What I just said in 4 words Tim McGraw felt the need to say in 3 minutes.
Listen: "Southern Girl"