The Spurs and Kings have one important thing in common.
Kings fans chant "Go Kings go" while Rangers fans chant "Let's go Rangers." Spurs fans chant "Go Spurs go" while Heat fans chant "Let's go Heat." Do you see a pattern here? Would some indisputable science data help? Have a look:
As you can see, teams whose fans chant "Go [team] go" win 2014 championships 100 percent of the time while teams whose fans chant "Let's go [team]" win 2014 championships 0 percent of the time. If you want to win a championship, chant "Go [your team] go." Can't argue with data.