^^^ THIS
I messed around with the XPS 13 at the MS store in a local mall. It has better build quality than the usual DELL's, and definitely better than most other Windows laptops in its class. But it doesn't compare to any MB's [IMHO]. Id have to see it running Windows 10, but I wasn't overly impressed with 8.1 on it. I don't really care much about touch screens, so it's a feature that means nothing to me...
It's about as nice as a macbook air, they each have their pros and cons but it's in no way outclassed by the Air. The touch screen (what I have) make it feel "futuristic". My other half "forced" me to get it with the touch screen. Windows 10 on it is fantastic. Battery life is "meh", but "meh" of 12 hours is still quite respectable. "meh" of 15 hours if you go non-touchscreen is even more respectable.