Whilst these stats are all very interesting, there is one thing that us always missing. the variable indicating the quality of players around him.
SP mentioned that a Chopra type person would benefit from playing with Moore, they would, but Moore would also benefit.

Everybody waxes lyrical about how good Bothroyd was for us. He was, as people have said, unplayable on his day (off his day he could be very frustrating) but look at the quality of people he played with.
Chops and McCormack with players like McPhail and Whitts giving him constant supply, willing runners getting to the byline and class defenders keeping 'em out.

I've no idea what the quality of player was like at his previous clubs but my guess is not very good (they certainly aren't anywhere near the quality of the aforementioned where he is at the moment) and that Moore has played better for Wales than his clubs, no doubt because of the quality of player around him.