Sonic.Thats all i can say since mario sucks soooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo much!

Mario's probably more popular but Sonic's better. Mario is hopeless without power-ups while Sonic can fight without power-ups and still be a worthy fighter. With that being said, Sonic is naturally more skilled.

But yes, Mario is more popular (unfortunately).

all sonic-worshipers will die by 2012!!!! Mario's been around longer so OBVIOUSLY more people know about him, it's common sense! Plus, Mario rocks, sonic sucks, Nintendo rules, PEACE OUT SUCKAZ!!!

In a popularity contest, it's obviously Mario. He's the most recognized video game character of all time.

sonic is the best mario would lose to him shut up mario fans.

sonic is much more poplare then mario becaues hes games are aresome hes songs they are just so good hes dvds so cool how dare you say maros more popoler than sonic sonics much more popler

sonic way more better and cooler than mario. first of all sonic has made at a one or more million or maybe a little less sales just from the first sonic game so thats a freakin lie!(no offense t). sonic is no doubt the best video game CHARACTER ALIVE!!!!!!!mario waits for time to fly, but sonic so fast time, itself waits for Sonic to speed by!(man i've wanted to say that for weeks!

Fuzzy,Sonic fan Shut up you guys have no idea what your talking about ok mario has been around since the 1980s and sonic 1990s plus Mario has more fans, Mario has sold over 400 billion copies and sonic only 17.4 thousand screw sonic stupid hedgehog!!!