Which Macbook would best suit my needs?

I am a student currently going to study criminology in the fall. I will most likely be doing many power-points, as well as essay's. I currently have a Macbook Pro retina, but the battery on it will not be enough for my daily needs.

I currently use my Macbook Pro to watch Netflix, music, and school-related work. I like the SSD since I have bad luck with hard drives, (I previously had a Macbook Pro and the harddrive failed numerous times).

Would the new Macbook Air 13' (2013) or a custom Macbook Pro with an SSD be best for my needs?

Any help is appreciated!

Mac

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