Heavyweight champion Tyson Fury would rank a win against Dillian Whyte below his victories over Otto Wallin and Steve Cunningham.
Fury will defend his WBC heavyweight title against mandatory challenger Whyte on April 23 with Wembley Stadium likely playing host.
It would mark Fury's first fight in the UK in four years, with his last five bouts all taking place stateside after signing a $100million deal with Top Rank in 2019.
'The Gypsy King' has recently directed several attacks at Whyte, criticising him for remaining silent on social media since the fight was announced.
And Fury's gave five past opponents he would rank as more prestigious wins than a victory against Whyte.
"It'd probably be Deontay Wilder, then Wladimir Klitschko, then Derek Chisora, then Otto Wallin, then Steve Cunningham, and then him," Fury told Queensberry Promotions.
Fury holds two wins over Wilder, stopping him in their rematch and trilogy after fighting to a split draw in their first meeting.
The Brit shocked the boxing world in 2015 when he ended the decade-long unbeaten run of Klitschko by outpointing the Ukrainian to win the unified titles.
He holds two wins over Chisora, winning the British titles against him in 2011 and stopping him in their rematch three years later.
And Fury fought through a nasty cut above his eyebrow to earn a points decision over Wallin in 2019.
He predicted his clash with domestic rival Whyte will be one for the ages, stating: "Get ready for the biggest British dust-up since Lennox Lewis vs Frank Bruno. History in the making," he continued.
"I am going to make him a lot of money, more than he could have made in a million lifetimes. He should admire me and I have respect for him as my WBC mandatory challenger."
Matchroom Boxing boss Eddie Hearn has a different opinion on Fury's comments and has only put three of his last opponents above 'The Bodysnatcher'.
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Hearn omitted Cunningham and Wallin from the conversation about Fury's best wins and has seemingly placed Whyte as fourth on the list.
"He's got a win first. If you look at, and these are the standout wins, Derek Chisora, Wladimir Klitschko and Deontay Wilder," Hearn told iFL TV.
"I don't see any other standout wins on the record and I'll say on paper right now, he's the best heavyweight in the world, but that's the only standout names on the record."
"Steve Cunningham's a cruiserweight. He was done when Tyson Fury fought him and he stuck him on his backside."
Fury was dropped for just the second time as a professional against Cunningham, but fought on to stop the American in the seventh round of the fight.