It changes up for me. Last month I made the most money on loyal fans and streammate. But I have months where clips4sale and myfreecams will end up coming close, or eclipsing the income from the others. The last few years a lot of the sites have been changing a bunch and adding new features, there have been glitches, and economy problems. So it's less predictable for me than it used to be. Any given month any 2 could be my leading sites now. It used to always be clips4sale and streamate though. Before about two years ago manyvids was a bigger earner for me too, but not as much now. It's rarely in my top 3 for the month anymore, and it used to be #2 consistently.
A lot of it depends on your personality, the type of content you put out there, and the effort you put in. I do well on streamate for live camming, because I'm less about being super social and "entertaining". I can be that way some times, but not consistently, I'm more truly introverted. I'm also more physical, so streamate has always been better for me. In addition do a lot of Femdom these days, which factors into it all hugely too. When I'm very directive it tends to go over less well on mfc, but at the same time, I enjoy being that way more. So that's where personality, and sexuality kind of come in.
If you haven't already I'd figure out what content you enjoy making, and what way your personality naturally leans first, then match the best sites to that 2nd. I think token sites are more of a struggle for introverts.