Packers-12 Championships..which would make them the best
Celtics-18 Championships...also the best, by championship standards
Blackhawks...congrats on the title, happy to see you guys win
Yankees-27 championships (dont know off top of my head...not a yanks fan)
Knicks-2 championships, 8 conference championships, and 7 division titles + biggest media market in the U.S.