I'll start off by saying that I am not a mega sonic fan. Secondly, I don't see Mario as a mascot, but as a figurehead. Now to place my humbled opinion, I don't think that neither one of them would have been as big as they are now if they would have been released more recently. But to compare them to games like Portal, Bioshock, Halo, Half Life, Metal Gear Solid, Gears of War, Mass Effect just isn't fair. Bioshock, Halo, Half Life, Metal Gear Solid, Gears of War and Mass Effect are not even closely related to games like Mario, AND the target demographics for those games are different. I played my first Mario game when I was 5 and (im 17 at the moment) I was not even interested in mutilating aliens with my assault rifle or running around in a cardboard box sedating enemy infantry. But I guess my answer in short, is no.