Chris Benoit, Eddie Guerrero, or Bret Hart, which was the greatest Wrestler to hold the U.S. Title?

Hey guys, I asked this question a couple days before but never mentioned these names. It comes down to these 3 that I picked to write an arguement/debate against someone else on why which wrestler was the greatest to hold the U.S. title. My opponent is most likely writing about Chris Benoit. BUT, I really want to get a few more opinions of who out of the three were the greatest to hold the United States Championship. Eddie seems like a liable choice for me if my opponent is doing Benoit, both eddie and benoit were close friends and had similar careers, had totally different outcomes for their deaths though. However Brett is a legend and ties with Benoit for the most U.S. Title reigns (5). What do u guys think?