Why do ppl feel that kendrick is best of all tyme?

Sure he can rap, some of his songs r ayt but some think he can murder anyone in rap battle...he has no punchlines, rappers like eminem, hopsin, danny brown, tyler, method man, ice cube, 50 cent, nas and CG WUD RIP HIM APART and yet some die hard fans r still reluctant that he's the best. Sure, so he raps bout make up, compton which aint a hood, plus his messages r the same: vanity, growin up and not to mention that BDKMV was stupid. I mean ppl love it because he said "i'm a sinner" in a chorus! Ppl say lil wayne is overrated but for this guy its beyond