Don't be fooled by idealism; democratic choosing of Megas would be even worse than what we have now.
Now: Charizard, Mewtwo, Banette, Camerupt, Charizard 2
Democratically: Charizard, Blaziken, Mewtwo, Charizard 2, Charizard 3, Charizard 4, Charizard 5
Ok I was going to post better examples but all popular pokemon I could think of already have megas. Point is, right now popular + some forgottenmons. If ballot, then ONLY popularmons