Like I said, my list was pretty much based off my knowledge of a) the bands/albums he listens to (from the other thread) and b) the bands he wants to get into. It seemed like an appropriate progression for the man from where he is to where he ought to be (well, except for Spoon, I just like Spoon so I put it first).
I really don't know Mountain Goats well enough to place them on an ordered list.