Best laptop to choose for gaming?

http://shop.lenovo.com/...&facet-3=3

i was wondering if these are worth the prices the ones that are under 600$.
and if they are which one has the best specs

None of them offer a discrete graphics card, only the one that is part of the Intel CPU, so none of them are appropriate for gaming. You will be disappointed if you get one.

In order to figure out what you need, search for the most demanding game you expect to play and then "recommended hardware". Once you know the recommended hardware, search for performance benchmarks - I recommend 3dMark. You will then need to find something whose graphics performance equals or exceeds that.

No lonovos are not worth the money if you are a dedicated gammer. I would look into alienware.