I'm currently a college student and I have a MacBook Pro Non-Retina Mid 2012. I am a science major so I don't really use any types of software besides the basics such as Microsoft. I'm thinking of trading in my MBP Non-Retina for a MBA because I want a laptop that lasts longer and that is definitely lighter since I am at school for 10+ hours each day. Which is the better laptop of the two? Does the MBA have a clearer display as the MBP?