I like the idea of separate leaderboards for each League. It allows all players, regardless of investment level, to feel competitive within their specific league.

I'll try to think of how I would implement this, then share a UI concept with Yaba.

I'm just not sure if it would make sense to give every League its own leaderboard prizes. After all, if I made it to the top of the Gold League leaderboard, I would suddenly be incentivized to NOT play (or even lose) in an effort to NOT advance to the Diamond league (where I would find myself at the BOTTOM of the leaderboard and no longer qualifying for the Gold level leader rewards). Which is a little backwards. We'd definitely want players to always be motivated to keep playing and striving to win.