I would like some opinions on what laptops to tell my cousin to get for Grad School

My cousin turned to me to tell her what kind of laptop to get for grad school. She wants to get it now or sometime in August. Here's a list of what I've considered

  • Macbook Pro(2012, 13-inch)
  • Macbook Air(2013,13-inch)
  • Samsung ATIV Book 9 Plus
  • Acer Aspire V7

and the two other possibilities(when they come out) are the

  • Macbook Pro(2013,13-inch)
  • Asus Zenbook Infinity(2013,13-inch)
She prefers windows. However, she has no experience with windows 8. She's reluctant to try mac OS, even though I know the macbook is alot of college kids' laptop of choice. Any ideas, I'm really fixed on the two possibilities though, hopefully they come out in time.