There is little more compelling than the instigation, build-up to a frenzy and then climactic conclusion to an ugly, bitter feud.
You want politics? How about Andrew Jackson vs. John Adams and murder and adultery accusations back and forth in the presidential election of 1828.
Mainstream sports will give you something like Shaq vs. Kobe, two teammates whose talents and egos could not get along in the sandbox for very long after going to the limits together.
Pop culture will give you Batman vs The Joker, and I’m still terrified of Heath Ledger’s portrayal in The Dark Knight. How about the Hatfields vs the McCoys?
Here are The 25 Biggest Feuds in MMA History