Sonic the Hedgehog! All. The. Way. He's also the MC in the Pyu to Fuku! OVA. It sounds really funny. It's about how the MC's dad has a flute shop, but the MC hates the flute and wants to be a guitarist instead. Then this man named Jaguar says he'll grant his wish... if he learns how to play the flute x,D
Hm... he's also Hayato Kazami in Future GPX Cyber Formula, Ryo Akiyama in Digimon Tamers, and Harley in Pokémon. But I don't really care about those anime ^^,