That's a tough one....Mario was always fun, but seeing I didn't own a Sega it was a total thrill to go to my neighbor's house and play Sonic lol
I liked Mario way better than old sonic back in my day for sure. Mario is a classic. Sonic i just didn't get the idea behind it.
I use to love Sonic when it first came out because it achieved such a breakthrough in gaming - SPEED. But now it has been way overdone. In my book the reigning champ is still Mario. Especially after Mario Galaxy 2.