Wich one is better and why?; asus laptob or lenovo laptop ?

Asus is much better if you are in terms of quality and performance. I myself as a person who makes affordable web design who works with http://www.imakeyourwebsites.com personally chose Asus model because they have better performance in making web and graphic design. I use higher specs of Asus but even though the model that you are comparing with the Lenovo is Pentium it is still faster than AMD and Asus has a global warranty compare to Lenovo that only covers warranty in Asia pacific.