I dunno what the fuss is about Mighty. I mean, really, back in Chaotix, he was just a palette swap of Sonic, with a wall-jump ability.
Any way, the likes of Mighty and Fang are among the only ones I have left who have yet to be sodomized by modern day Sega/Sonic. Frankly, I'd prefer it to stay that way. Or hell, give 'em to the likes of Sega AM, Treasure or P*, and allow them to start anew (and FAR FAR AWAY from Izuka and dem).
Bean the Dynamite?
Bean and Bark both may have appeared in Sonic the Fighters, but technically, they are Sega AM (Virtua Fighter, Fighting Vipers, etc)'s creations, who appeared as "guest characters" in StF, and later in Fighters Megamix.
If AM ever got around to doing another "light-hearted" fighting game starring those two and Honey, I'd be ecstatic. Again, just keep them far away from SegaSonic!