StarFox 2 and Command had different Arwings, Wolfens and other aircaft to fly with. The differences were RPG style: one has more Smart Bombs, the other has longer lasting shields, etc..
I would like to see them bring back the walking, and being able to stand on a teammate's wing. Actually I'd just love to see them bring back Adventures and Assault merged into one with the cinematic capabilities of today. Like Starlink!