I'm going to have to say Sonic. Mario is ok... But I grew up on Sonic games... And whoever said the Mario franchise didn't die with Super Mario Galaxy has a problem... If you ask me, both series should have been finished after they released Shadow the Hedgehog and Luigi's Haunted Mansion.... Either way, people who want to talk about which character is more realistic, chose the wrong two characters to compare. Niether is remotely realistic in any way. Plus, you can't say Sonic is overpowered, because in Mario and Sonic at the Olympic Games, they toned down the Sonic cast quite a bit so that the Mario Cast could keep up. Sonic wins, sorry Mario.