When you think Kendrick Lamar, you think more his albums than you do his individual tracks.
However, he's certainly had some good songs. In a new interview with Touré, he names the To Pimp A Butterfly tune "Alright" as his best.
Speaking motivation, later in the chat Kendrick explains that it takes failure to get to success.
He also singles out JAY-Z, Nas, Biggie and Snoop as artists who motivate him.