Last week's UFC 201 Main Event saw the one of the UFC's longest reigning champions dethroned as Robbie Lawler was sensationally KO'ed by Tyron Woodley.

The round-one finish saw Woodley end Lawler's Welterweight Championship reign at 602 days, continuing the trend of UFC titles switching hands.

Whereas once the UFC was ruled by the likes of Georges St Pierre, Anderson Silva and Jon Jones, recent results have proven that it is far more difficult to defend a title than to win it.

Flyweight champion Demetrious Johnson, and women's Strawweight title holder Joanna Jędrzejczyk aside, no current UFC undisputed champion (with Conor McGreggor and Daniel Cormier's status slightly complicating things) entered 2016 with their current title.

Following Ronda Rousey's 1,074 day reign atop the women's bantamweight division, no one has been able to defend their title. Holm, who beat Rousey, dropped the title to Miesha Tate, who in turn lost it to Amanda Nunes at UFC 200.

Jose Aldo's title win over Frankie Edgar on the same UFC 200 card, combined with McGregor's absence from the division, means the featherweight division doesn't have an undisputed ruler.

Eddie Alvarez shocked many by taking the lightweight title from Rafael dos Anjos on the same weekend as Aldo and Nunes won their titles. Although we were guaranteed one title change over the weekend, there were few predicting three.

Michael Bisping has held the middleweight title for just 58 days following his won over Luke Rockhold, who ended the 888 day reign of Chris Weidman.

Although Daniel Cormier has technically held his title for well over a year, an injury and the subsequent crowing of an interim champion in Jon Jones complicated matters. The UFC 200 main event was supposed to sort out that mess, and although Cormier is yet to beat Jones, he deserves to be recognised as undisputed champion.

In the heavyweight division, which has never been a title bounced between challengers, Stipe Miocic now sits atop the pecking order, after beating Fabrício Werdum, who many said may be unbeatable after he ended the reign of Cain Velasquez.

With a likely matchup between Miocic and Velasquez on the horizon, I wouldn't bet against the revitalised Mexican superstar regaining his crown, thus continuing the title hot potato.

While each and every current UFC Champion has what it takes to embark on a long title reign, the level of competition across nearly every division is at an all-time high.

Perhaps only Demetrious Johnson has cleaned out his division, after defending his title eight times since he won it back in 2012.

The fact that he has already beaten top challengers John Dodson and Joseph Benavidez twice each, the division is looking a little thin.

That being said, the same was being said about Jose Aldo, who defended his title seven times and looked unstoppable. Of course we all know that his title reign was ended in under 15 seconds by Conor McGregor.

Given the amount of elite training camps churning out elite-level fighters, you can certainly forgive the current champions for looking over their shoulder.

Right now we are waiting for someone in the heavier divisions to stand up and dominate their division. Whether or not they can is a completely different question, but as for right now, I have to admit I'm enjoying the unpredictability of the title fights.