

I think DS should take the final round - plays the DS and GBA library + relatively easy to emulate GBC if you really want to.
And still the only way to play some games - Contra 4, Sonic Rush for example, are horrible to play on emulator but still really fun games.
Also did this with the first Monster Truck Madness and Big Red Racing. And Motocross Madness. Seems these games were just built for that. Only had demo versions though, so just the one stage to explore.