Thanks for the input guys.
Keith: Just my personal opinion but, #3 is kind of boring and the wood doesn't really point anywhere but out.
Glomeridae: Thanks! I was experimenting with some set aquascaping rules, and also using the smaller rocks to point back to the main rock, creating a circular movement. (same with #12, but with driftwood)
Personally, I like #1 the most. Any ideas of what I might change with that one?