Sonic the Hedgehog is iconic. That's why people flipped out when they saw the early trailer of the Sonic movie. It was, frankly, horrifying. Human teeth?! WTH? But thankfully the makers of the movie listened to fans uproar. And since it's CGI, they pushed back the release date and said "Let's fix him".
And for the first time in human history, people on the interwebs agree on something. Fans love the reworked Sonic.