Which laptop for college? - 1

Lenovo Ideapad U430 vs. Lenovo Yoga 2 Pro vs. Asus Zenbook

- Science student
- Basic net surfing and browsing (LOTS of research)
- Mild gaming
- Stream/watch shows and movies

Not interested in Chromebooks, Acer or Dell… Open to other suggestions… Thanks!

Added (1). Also, it'd be nice if it was less than 15". Thank you!

Added (2). Also will be using to read and scroll through PDFs. Added reader = bonus. I know they all have good screen resolutions.

A macbook air is a nice laptop for college, mild gaming fits right with the macbooks, net surfing and browsering good for macbooks, stream and watch mives and shows and videos excellent for macbooks if not the macbook then the lenovo ideapad u430