We prefer the Copy Trade. It's a great solution and if you're using a social network, you can communicate with experts and use for free a highly professional service. However, there are many robots and ATS (automated trading systems) which are pretty good, but they're based on an algorithm.
The binary trading is something very interesting, but we doesn't have enough experience with manual trading (profit) to say it's the #1 method to trade. Of course, if you have good results maybe that's the best for you. It depends only on the results.