I dind't read all ur long post, but the only rational choice is a mac book pro 15" do bootcamp if you want windows or need to flip over to test something. all doors are open with the macbook, why even consider anything else? you wouldnt run mac os on a HP.

look, mac is about the hardware. it's superior hardware. run whatever OS you want on top of it, the hardware is the best in the industry, there just isn't any comparison.