In my perspective, Kendrick Lamar is our generations Nas. Both of their work they contributed to the hip hop/rap genre made an impact. illmatic for instance made nas an undisputed and legendary hip hop artist but also it was regarded by many as a CLASSIC hip hop album because of Nas story telling. Kendricks album good kid maad city is similar to illmatic because of its structure however its a bit different because kendrick gives you his point of view and you can visualize it clearly which made the album stand out and made kendrick stand out. i dont think there is any other rapper who can be on Nas level other than him by far.
A few years from now he might be