A green cudgel is worse then a watchers claw.
A blue one is a tiny bit better.
A purple one is better.
Weapon damage is really good.
on m lvl 15 rogue her cudgel has 8-11 weapon damage compared to a claws 7-11. a blue moks has 10-14 wdg.
the difference between the blue wdpg and a claw with double 3 agi gems in it is like 1 damage on sinister strike and eviscerate and higher white hits.
Honestly I would go purp/blue moks/ cudgel MH and watchers claw offhand.
although I think this also varies depending on lvl for another example my lvl 39 shamans green cudgels wpd os 42-55 compared to claws 31-44 with adept gems 4agi/4mastery. My physical hits hit harder with a cudgel/watcher combo but my moves like lava strike hit harder with double claw.
Tldr depends on class/spec/lvl also I didnt get a blue cudgel and moks is horde only.