when i was brushed i used deans...
switched to brushless 13.5T... switched to bullets(cause there is 3 wires)

switched to BL 8.5T and now its soldered. And only due to the fact that my best mate is an auto electritian thats a gun with a soldering iron and does a ultra clean job.

I liked the bullets for ease of pulling the motor or speedy out seperately if needed..