Connectors or Direct solder for esc & motor?

[Dafni]

I use those fat BK plugs too. They feel like business. I think they are good, I will put them on my setups if I intend to try different motors on that ESC.
I use those 3mm bullets too, sometimes.

You CAN make a wire to wire connection quite effective, actually. I you take a non-pre-tinned 12g wire (ESC), remove 5mm from the insulation, and push the motor lead into the fine strands, so the strands are all around the motor lead, and then tin it all up, I guess its not too bad, either.