For moonkin i will be optimising for Int > versatility >mastery >haste >crit >multi.
This means the 690 questline ring will be part of the set
Cant help you out with feral though
There's not much gear that's changeable between the two specs:
Weapon/jewelry&back/trinkets don't switch int/agi.
The same 3/5 of your main set will be used in both sets, with each spec having a BiS non-set item and thus maybe different 4th set-item.
So essentially you are 'optimizing' 2 main-set slot items, and wrist/waist/boots. Assuming the BiS items are even different for those slots. Ultimately it doesn't matter much.
Feral uses 2set because 4set sucks and there is better non-set pieces. I THINK statprio for feral is crit to around 35%ish then multistrike. Someone else has to fill this in or check some highrated feral on the ladder
Yeah, I'd say the same, crit > multi, with versatility rather high depending on comp for guaranteed damage and more importantly to keep you from dying to random stuns.
Still, you'd start with 4 set, because resto 'needs' it. Then you'd finetune and buy feral non-set items.