Picking between two laptops - need people good with computers. [+rep]

[Azn]

Yeah got a huge gift card to Sam's Club from a friend.

I'm deciding between these two:
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Which one do you think is a better laptop and why?

I'd be using either one for college and mostly carrying around with me all day.
The bottom one is lighter but I really like the first one even if it's a little bit more expensive.

It'd be nice if someone near about Intel Core or whatever it is and explain to me the technical stuff.