Zelda does almost 4% better with registered users, but that's because of the Zelda bandwagon near the start of the match. If we ignored the first 12 hours of votes, Link would have gotten 66.52% on Zelda instead. That suggests the Zelda bandwagon was strong enough to inflate her performance by about 3%.
Removing the first 12 hours of votes also gives Link 65.38% with registered users and 68.14% with anonymous users, which is only slightly less than a 3% difference instead.
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Luster Soldier --- ~Shield Bearer~ | ~Data Analyst~ Popular at school, but not as cool as BK_Sheikah00, Guru Champ!