sonic its been there alot longer
Sonic the Hedgehog
more
Sonic by far is more popular. Some people just prefer Shadow over Sonic.
SpongeBob Squarepants brings in more viewers.
I think Sonic and Amy are more popular than Shadow and Amy.
Sonic,by a long stretch!
Elvis is more popular among adults, but Sonic is more popular among kids and teenagers. It's hard to say who is more popular.
Sonic the hedge hog
Superman!
Big Bird was more famous when sesame street was more popular , but Sonic is more famous now.
sonic Both are popular, however prior to the (re)release of sonic 4 and sonic colours, I would say that star wars was the more popular franchise. Star Wars is a movie franchise while Sonic is a video game franchise, so Star Wars is probably slightly more popular.