What I have noticed is that I would get a lot more crowns and heat farming the jelly king levels, than playing on the Lord Vanaduke levels or just a regular tier 2 or tier 3 level (But I find that I would get a lot more loot in the regular tier 2 levels than the tier 3 level! WTH? That doesn't make any sense!).
So my question is, are there anyway to earn lots of heat and crowns in one of the other levels, than farming the Jelly King all the time? Because playing the same jelly level gets boring all the time. Either that, or one of the tier 3 levels gives out big rewards, and I wasn't notified about this.
Arenas and graveyards are pretty good