It's not necessarily two "highly skilled fighters" competing against each other that's making the UFC "boring". Think of the majority of the main events for the past few years [not saying all]. Jones dominating top fighters, Silva losing, Fedor losing ect. It's mainly the lesser skilled fighters that all have the same generic skillset that are making it a bit lackluster. "Highly skilled fighters" are your Machidas, GSPs, Andersons, Weidmans, Aldos, Jones' ect. When they have matchups with other "top" fighters, it generally seems to be pretty entertaining IMO.
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Sugar Ray Leonard