Any top blastzones smaller than T&C get into the abusive territory.
Smashville effectively has closer side blastzones because of the moving platforms and how small the main stage is (so the side blastzone is closer from the centre of the stage). Town and City too sorta because you can't DI moves as much (the upper corner is obviously closer). Battlefield and Dreamland provide the large side blastzones.
The extremely close blastzones of transforming stages do them no favours in terms of bringing diversity to the stagelist. They're what gets them banned most of the time (super close side blastzones of 2nd transition of CS, obviously top blastzone shenanigans on Delfino)
Smashville effectively has closer side blastzones because of the moving platforms and how small the main stage is (so the side blastzone is closer from the centre of the stage). Town and City too sorta because you can't DI moves as much (the upper corner is obviously closer). Battlefield and Dreamland provide the large side blastzones.
The extremely close blastzones of transforming stages do them no favours in terms of bringing diversity to the stagelist. They're what gets them banned most of the time (super close side blastzones of 2nd transition of CS, obviously top blastzone shenanigans on Delfino)