Okay, actually, that's not correct.
According to the Guinness Book of World Records, Pac-Man is actually the most recognizable video game mascot/character of all time, with Mario a very close second.
However, while I've played so many of his video games that any time anybody says "Who is it?" in a movie, my brain automatically fills in "It's-a me, Mario!", he hasn't been my favorite brother.
No, that honor goes to Luigi.
So why is it the world's most standard second banana is my favorite? Here's a list of eleven reasons why.