51 Votes in Poll
RIP Rabbit Hole 7 & Parasite Boss
Lost is great if you're lucky, i counted it and 21 of its rewards are 1 million or more. (I still voted Circus because I don't have the luck needed to make Lost a good farm)
The best kinda depends on how far you are though and what class you use. Mid-game Ranged or BOTT players will find Parasite is a great farming method, while End-game players of any class will say Circus is the best.
Gift trees is a good source of money, however you have to be rich in the first place to really make use of them
Circus, Lost, Tower, Farming
What do you think?