Boston Celtics (NBA)

Ever try chatting with a Boston Celtics fan about the greatest sports teams? Good luck if you disagree. Picture this: more banners than a comic book convention and a fanbase with a chip on their shoulder the size of the Garden itself. It's like their playbook was written by Sun Tzu and every game's a chess match where they think they're Bobby Fischer. The real struggle? Deciding whether it’s the history, the hustle, or those heart-stopping last-second shots that makes them GOAT-worthy in GoatWars. No pressure, but pick a side already!