1Sonic saves animals, Mario kills animals
2Sonic characters are more fun
3Sonic girls seem to dress more modernly
6Mario is a copycat and idea thief
8Sonic has a variety in plot, while Mario lacks that variety
9Sonic racing games are better than Mario racing games
10Sonic saves the world. Mario saves a princess who hasn't learned to save herself
11Sonic has better spin-offs
12Sonic fights more villains than Mario
13Adventures of Sonic the Hedgehog is way better than The Adventures of Super Mario Bros. 3
14Sonic is for older audiences
15Sonic has cool villains
16Mario's live action movie sucks
17Sonic has a more interesting cast
18Eggman is better than Bowser
19Sonic's had plenty of good TV shows
20Sonic's speed makes his games so much fun
21Sonic lives in a more interesting world
22Sonic has fun stages
23Classic Sonic is better than Classic Mario
24Sonic's first games are better than Mario's.
25Sonic's power-ups are far superior to Mario's
26Sonic has better classic games than Mario
27Sonic is sexier
28Sonic has a better variety in friends and foes
29Sonic is by SEGA while Mario is by Nintendo
30Sonic doesn't kill his helpers without any shame
31Sonic looks cooler than Mario
32Sonic isn't fat like Mario
33Sonic is funnier
34Rings are better than coins
35pSonic has better crossover SEGA characters than Mario has crossover Nintendo characters
