I got the most from Disneyland. My business that has the most population
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How much are you guys getting from businesses per 3 minutes. And population is most important right? Then level of course
My businesses are mostly at level 10 so I get anywhere from $3,000 to $10,000 depending on whether it has been franchised or not. (as in someone has franchised me). And I usually set it to 4 hours, I have wasted so much time on this game that I really need to step back from it sometimes LOL
IF you can afford as many of whichever wonder you want your skins to be in until you build your fortune until you finish buying up your land is the way to go. Once you have done that, you can then slowly change the skins to whatever you want later. It looks terrible and unintersting for a while but it is worth it.
I kept one of my Stock exchanges in each of my towns just to remind me how hard it was at the beginning