Which laptop should I buy?

So I have been searching around for the besty laptop for my needs, and I have narrowed it down to these laptops, I'm going to be using it for school and light gaming, as well as youtube and email etc.

The first (and cheapest):
http://www.amazon.co.uk/...00GKG1JLM/

The second:
http://www.currys.co.uk/...6-pdt.html

The third:
http://shop.lenovo.com/...ies/g505s/

The fourth:
http://www.ebay.co.uk/...1321077494

Now you will see they are all around the 400 pound mark, because that is how much I'm willing to spend on something that could easily get broken!

Added (1). best* not besty *facepalm*

I perfer 2nd one is best.

That is what people said on the other forum I asked on, thanks! Decision made.