that would be a hard one sonic runs at full speed 749mph but superman at full speed flys 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000mph but in sonic and the rings sonic runs 10000000000000000000000000000000000000000000000000000000mph so superman is faster but if sonic went sonic unleashd and did a sonic bost he could run faster then the speed of light and he never ends in speed sonic would just get as fast as he wanted to so all together Sonic the Hedgehog is faster then superman and anything else go!!!!!!!!!!!!!!!!!!!!!!!!!! sonic the hedgehog
i think sonic because sonic is even faster than cheetahs:D
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Sonic is the fastest Hedgehog Rainbow Dash She can obtain mach 10
No, super Sonic is faster.
sonic is faster. sonic is the fastest thing alive.
sonic is faster than tails by a long shot
Sonic.