As a 34-year-old NBA data analyst with 8 years in the league's backrooms, I’m diving deep into what truly defines basketball immortality. Using stats, impact, and legacy across four pillars—championships, peak dominance, cultural influence, and career longevity—I rank the top five legends. From MJ’s six rings to LeBron’s 411 engineering, this isn’t just opinion—it’s algorithmic truth. Let’s break it down like a shot chart.