If you were to design a "rival" for Smash, what would it be?

[Ryudo]

SEGA did it before Nintendo. Fighters Mega Mix. Sonic,Daytona USA,Fighting Vipers and Virtua Fighter. We saw what SEGA did with the Racing series taking on Mario Kart and a wonderful job. They just need to make a new Megamix with fare more SEGA characters.