on the default database:
Davies: 126ca-159pa
Moreno: 136ca - 158pa
Not much to separate... Moreno the better option though and SI really should have him set at a higher PA
Davies is better
Shaw is even better
Alex Sandro is much better
Don't forget to check their PPMs and see which one suits you the best.
You don't want to waste time learning/unlearning them when they could be trained more.
As a Gooner I feel dirty helping out a Spud... ;-)