How does KG rank all time compared to Kobe, Duncan?

How does Kevin Garnett compare to Kobe Bryant all time? Andrew D. Bernstein/NBAE/Getty Images

On Friday, Kevin Garnett announced his retirement after 21 seasons in the NBA, joining fellow legends Kobe Bryant and Tim Duncan in bringing a curtain down on Hall of Fame careers in 2016. It truly is the end of the era.

Garnett is obviously an all-time NBA great, but just where does he belong in the conversation? How does he stack up against Bryant and Duncan?