1. Mario doesn't talk, as to not interrupt the gameplay
2. Sonic wouldn't have even existed without the Mario franchise
3. The Mario games have less glitches
4. The toxicity of the Sonic fanbase ruins the franchise, the Mario fans are only toxic when the Sonic fans are mean to them
5. The Mario franchise has been able to expand into the modern market with quality new games, Sega has tried to do this (sonic 06, sonic boom, etc.) but as the most popular recent sonic game was sonic mania, a game based on the classic sonic games, sega has failed to modernise the franchise.