I vote RJC, from a street car standpoint.... if you look directly at an RJC and a PTE mounted to a car you will see the smaller core of the PTE, BUT MORE importantly you will see the BIG CAST END TANKS Blocking the airflow to your radiator.... sure the RJC might be heavier but its size is perfect, the core allows airflow through the fmic AND the radiator....
....if you car is drag only.... buy whatever cheaper, both have been proven to go fast.... i love my RJC though....great customer service as well.