Which Laptop is the best

I am heavy computer user, I use it for various stuff, but not gaming. So a powerful and fast laptop is a most, that will last me 4 years at least.
Out of those 6, which one do you think is the best?, I read the reviews, and they all seem to be equal rating.
My budget is 600E.
Im a heavy computer user being I go on the internet a lot.
Use word, pdf, documents etc. Office work. But nothing tech savy like programming or games. I plan to bring it around with me to college.
I planned to go in the computer stores, but I figured they would be overpriced laptops there, but then again I could get them on the payment option. If such laptop that exists that is a must buy.

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