Or should he go back to his fun, 2-D roots?

OR should Sega try and make a Viewtiful Joe type, 2/3-D hybrid on the classic Sonic gameplay?

Just curious as to everyones opinion...

IMO, since the 3-D sonics have hit the market, Beginning With Sonic Adventure, the franchise has slowly, but surely, gone downhill. I'd like the game to go back to it's 2-D roots. But I wouldn't mind seeing a hybrid style game. I think Sega could pull it off...