The ice skater that has competed and earned medals in the most World Championships is Michelle Kwan.
She is known to be the American figure skater as she is a two-time Olympic medalist and a five-time World champion. Currently she is ranked number 2 in the world after Sonja Henie as she has 9 medals.
Therefore, The ice skater that has competed and earned medals in the most World Championships is Michelle Kwan.
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