Depends what languages you know etc.
Xbox has XNA, which is OK.
Ouya has many Android game libraries, amongst others: libGDX.
Or you could count Steambox as a console, and develop in whatever you want (to a certain degree).
Xbox has XNA, which is OK.
Ouya has many Android game libraries, amongst others: libGDX.
Or you could count Steambox as a console, and develop in whatever you want (to a certain degree).