It is hard to choose tbh. Raggy's MH and Shannox's OH equal less Int than Raggy's Staff (if you put in a JWC only gem for example). From the other hand it's hard to say what's ones exact role in a raid if ones healing set-up changes (due to rotations) and also depending on the boss encounter one might be assigned to heal an off-tank or raid heal (in case you're playing with 1 tank and 1 pala healer). Which shifts ones stat priority >.>.
Edit: Am just trying to get clear about what I should be aiming for in general
and all input is very helpful.