Even just based on the entries, the girl won. Her lyrics were better, her singing was better, and the best your buddy put out was some piano-driven soppy over-emoted crap. Like "whoa, yeah, baby, yeah" lyrics. They're very 3 doors Down as a band, which isn't saying much. Granted, I only have 3 tracks to go on. His singing sucks. I'm not gonna dispute that. it does. It's like an American Idol reject from the 3rd round.
As for the guitar brother, I'm not gonna try and say I know I'm better than him. I don't know what he plays or how he plays, but I'm a Jazz guitar major, so I know a bit myself, and he's definitely nothing special.
Again, 3 songs, that's my opinion so far. If you have more, and you know they're better than what I'm saying, I invite you to give me more tunes to listen to, but just from the 3 on their website, they are absolutely nothing special no matter how many instruments they play simultaneously.