If you are going to buy a new leptop an you have no idea how to choose it. I can help you.
It depends on your requirement. If you are a general user and just want leptop for some personal uses(like watching movies, chatting, messaging etc.) then I will recommend you to buy lenovo. Because lenovo is giving more facility in low of cost. lenovo is giving good perfomance too.
And
If you are a programmer or business man I will recommend you to buy dell/hp leptop with 4gb ram, 1Tb hard disk and i3 processor.
It will cost you low and you will feel good perfomance too.