I heard on some videos people telling BitConnect and Control Finance would be run by the same people.

I don't know about this, but I have invested about 1 BTC in both in total. I see Control Finance as much more promising and easy, but I stay awake. Once I hit a certain 'daily earnings', I will start redrawing regularly and compounding alternatively, so that I make sure I get my original Bitcoins back, or at least lose as little as possible.