Thank you both for your feedback. It's never enough to ask for opinions I think, specially when you hesitate .

I got both and the moonkin is by far better geared both for feral and balance.

In my raids, the moonkin isn't a great dpser (mine, this is not theorycrafting oc ). My sequence is quite defensive, with both Insect Swarm and IFF on opener and then sequences of wraths and starfires with no Moonfire spam, just using it's duration and repeating (maybe that's the problem but I need more sustained dps and less burst due to lack of gear overall). Never tried with a warlock though so I cannot compare.