All should do fine for school work. I have concerns about the Surface and HP so my nod is to the others.
Hey guy, which Laptop/Ultrabook would you recommend for me? In about one month I'm going to university and want to invest the money I currently have into a new laptop. I can't really decide between the XPS 13, the HP Spectre x360 and the MacBook Pro while the Surface Book is a bit lower on my list due to it's higher weight and cost which is only partly compensated by the detachable Screen. For the last 5 years (school) I used a MacBook Pro but with Windows via Bootcamp due to Mac OS becoming too slow and like both systems but find Mac OS a bit more appealing as I don't need gaming since I own a XBox One only for that.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic