In cricket it is the South African Jhonty Rhodes.
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Jonty Rhodes
Shane Victorino
Matt Holliday
James Anderson
Jonty Rhodes is the one of the best fielder in the world.
Babe Ruth
The best fielder for every position in each league is awarded the Gold Glove award. This is voted on by players, coaches, managers, and media. This would be a good judge of "who is the best fielder" any other answer on here woudl be a personal opinion, more then likely based on the team the person likes.
willie mays
Ichiro Suzuki
Carles Puyol
Roberto Clemente, hands down.