What games dominate these contests make no difference to me. There is already a rule that someone can't choose the same game once they have used it so these games will slowly die out for the premiums.
You just can’t pick the same game as last time. Doesn’t matter about the leaderboard. If you picked starburst last time for example. You can’t pick it again this time. It’s a really easy rule don’t know why it’s being complicated.