I love hitting graveyards (Sun Shards in T2, Zombies and phantoms faint at my sight) and arenas (though 8 gun puppies dont really help the cause of bombing...) but besides that, what are the most rewarding places to hit?
I've heard that Treasure Vaults are some of the least valuable zones... I don't disagree with the logic behind that.
But then where else would I *Want* to hit up? Clockwork Tunnels? Deconstruction Zones?
Jelly farms are rare but good, as far as I remember, and any clockwork if you have the chance to get a Danger Zone and can actually do it without revive.
Deconstructions Zones are meh, not as bad as Treasure Vaults, but they are in the least profitable zones.
Jelly King gives the most crowns out of the 3 T1 an T2 bosses while still being easy.
Treasure vaults are good, but don't pay out any kind of real cash until stratum6. Down there they can pay in the thousands for a single vault, but above that they pay very minimally; however are fast, easy, free money w/o any real danger and good chances for spark tokens and almost guaranteed large minerals. They're not the most profitable in direct liquid output, but becasue they're raw, effortless cash in a quick, easy floor they make up for it by letting you go deeper faster without costing you revives.
Other than that?
Graveyards, Arenas and Danger Rooms are the way to go. Get through them with ~1 revive and you'll be rolling in it; decent heat, decent crowns, altough they're all primarily about heat. If you want crowns, the best way tends to be to do a full two-stratum JK run which typically nets 7~9k crowns and decent amounts of heat, but can take a good while to get through, compared to a single arena or graveyard.
Older thread but makes for an interesting read.
I'm not sure if it was just the gate it was on while we were doing our runs, but we've started writing down our exact profits after each run and we made the most from doing ironclaw munitions factory runs. We consistently made just over 7000. Jelly king runs only offered around low 6000's/upper 5000's, and today's Jelly King run (On the new gate it just got) we only made 5000 (5091 to be exact). But we didn't hit the arena.
This is for the whole T2 run, not particular levels.
The gates are different now, so it might not be the same for the munitions factory.
Bosses?
About the rest... I don't know the exact amount of each level, but there isnt one that shines much.
Treasure vaults are bad since they don't have enemies. Most of the income comes from klling them >.<
I'd just do what you find easier to avoid deaths.