Actually I've never looked at Samsung as a vendor for a laptop. They make great phones, I loved my S3 until it took a bath when I was drunk (hah).

If it doesn't creak when you hold it at the corners, I could be sold. The airs aluminium case makes it "feel" sturdy, and silent.

I also really like the feel of the keyboard when typing. Most laptop keyboards I fat finger constantly. The air (and probably MBP) actually feel good to type on

edit: Had a look around for Samsung laptops similar spec. MBA still can't be matched price vs perf