#2 Brock Lesnar (Win record: 90.9%)

Fans may love him or hate him, but there's no denying that Brock Lesnar knows how to win.
The current Universal Champion, the beast won 10 out of his 11 matches, with a win record of 90.9%
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In fact, only one man has been able to beat the Beast in 2018, that man being Roman Reigns, who finally vanquished his nemesis at Summerslam this year to win the Universal Championship.
Part of his impressive record though, comes from Lesnar's very relaxed schedule, as he has obviously had less chances to lose, and is constantly booked strongly.
Already scheduled to face Braun Strowman at the Royal Rumble for the title, things look promising for Brock, who has defeated the Monster Among Men several times in the past, including at the very same event in January earlier this year.