I really appreciate your write up. What i found really interesting is the display results for the retina compared to the supposedly better 4k on the XPS. My question is, is the new mac 12' good enough for light editing; meaning youtube videos shot on a Canon 5D for example? i have an expensive computer that i use at home for heavier editing and am looking for something light and portable. I was set on the XPS 13' but windows alone makes me cringe. Any thoughts?