Bowser vs. Eggman is gonna be fun. Like Eggman vs. Wily but with a bigger budget and the potential to see Bowser Jr. interact with Sage.
Forgive me if I have misconceptions about it but I think this is gonna be interesting because Bowser's soldiers are all... mostly useless. Having played most Mario games and every Sonic game, it kinda feels like the Badniks are usually harder to deal with. But Bowser himself is super overpowered and dangerous in a way I'm not sure Eggman can match on his own. But if he has more of his army alive in the end compared to Bowser, will he even be facing the King of Koopas alone in the first place. Plus they both have a fleet of aireal battleships, the Egg Fleet and the Airships.... **** I FORGOT ABOUT THE KOOPALINGS!!.
Basically it comes down to "can Bowser and his kids solo Eggman and his entire army?"