<human>:  I am planning on buying a new laptop in a month but I am not sure which brand would be the best. What are the key differences between HP, Lenovo, and Dell laptops?
<bot>: HP laptops tend to offer more variety in terms of style, design and specs, while Lenovo and Dell laptops focus more on powerful performance and cost efficiency. HP typically offers more powerful graphics performance and RAM capabilities, while Lenovo and Dell focus more on portability and longer battery life. HP also tends to offer more configuration options, while Dell and Lenovo tend to have a more simplified selection of laptops with fewer customization options.