I went for the snowflake retort after you had blamed me for being condescending
. Why not go all the way if you're already there?
Irregardless, yes, I would argue for spirit in all cases, even hardmode gear - the main thing here is, that the fights gets progressively more and more intense to heal. As I've already argued, more heals > bigger heals when the damage gets more intense, for a druid atleast (as hots are more effective the more you spread them out).
Let's take the most healing intensive encounter this tier, Shekzeer, and one of those resto druids I argue are "doing it right", Owld from method:
http://www.worldoflogs.com/reports/k...28&e=3366#Owld
Now, numbers are ~, not 100% accurate, but enough to give an idea.
As you can see, over a 14 minute fight, he casts 130 rejuvenations for an average of 114K healing per (or 19K per tick).
He's obviously got the set bonus, so every 5 minutes, 1K spirit will give him another 4.7 rejuvs, making for a total of ~13-14 rejuvenations more over the entire fight, with 1K spirit over 500 int.
13 rejuvenations is 1.5M healing.
Adding 1.5% healing to his current healing done (60.5M) adds 900K healing.
As you can see, spirit is *far* superior.