Joe threw the ball to Sue, who caught it.
Joe threw the ball to Sue and she caught it.
As I understand it from my grammar book, the relative clause in the first example give us extra information about the person or thing (because of comma). So, can I replace "who" with "and she" without the loss of the meaning? I suppose I can. Which version is more common in usage if both versions are idiomatic and interchangeable? I suppose the second version is more common because it's well-known Past Simple.