From what I have seen and heard, all of the major brands of lines will be about the same. You could probably just pick the one that you think looks best, or you can get the best deal on. I put Galfer lines on my bike and haven't had any problems. a friend of mine put goodridge lines on his bike and they look really good, he hasn't had any problems either. That's as far as my experience goes.
I didn't do my rear line to save some money. I don't get a lot of feel from the rear brake anyway, so i figured it would be more pointless than me doing the fronts.