I like them all. The first one's my favourite by far, I think you managed exactly what you were going for there.
The third's not bad, although I can't shake the feeling tht something is...missing. Maybe it's because with the snow covering the sleepers, the interesting detail is lost. I think it could do with a slight strightening, turning it anti-clockwise.
I think I'd like Four a lot more if you could have gotten your friend more into the shot other than just "kicking back while my bro-friend takes a photograph". At the wheel of the bus making his best "I hit the kegger too many times!" face at the camera would have been awesome.