Art of Composition - 1

Playing with line, shape, and just the way we frame things.  I caught a beautiful day moon at 11:00 in the morning yesterday.

I thought when I was setting up the shots that I would prefer the vertical (portrait) orientation shot ... which is unfortunately a little more than the zoom on my p&s could handle.  But after uploading the photos, I much preferred the landscape orientation.  I can't decide why.

Ignoring the focus (I know the landscape is better focused, but I'm trying to look at the shapes and elements in the photo, not the clarity), which orientation do you prefer and why????