Not sure about most successful - that depends on the individual's requirements - so each setup will vary. The most common setup would probably involve routing the crankcase and valve cover breathers to a t-piece using rubber oil lines, this then feeds into a catch can mounted to the battery cover/slam panel/bulkhead and plumbed back into the turbo intake pipe.
I've played about with various different setups, now I've just stuck with the simplest design to meet my needs of a robust setup with minimal restriction to blow-by gases at high rpm usage.
