The reason I like my formula better because a person could have number one scores in three different games, and because they didn't touch one of the games, they get heavily penalized due to the ranking system. Robbie Lakeman has two number one scores and isn't in your top five. My formula takes into account his supremacy in two of the games. Mark Kiehl also gets screwed by this.
As for me, it doesn't matter what system you use. I'm still top five in almost all of them.
Edit,maybe it would be better to have a max of 143 for the top number since Donkey Kong Junior has the least submissions. That way, no game is given a huge advantage.