[resto] How much spirit do you aim for?

Hi all, just trying to get a general idea of what you guys out there aim for in terms of spirit. Do you go mana tide mana battery? Just enough to heal through the encounter?

Please list:

1. Raid size (healing comp as well if it affects your build [i.e. a lot of absorbs so less mastery, etc]) and progression
2. Stat priority
3. Amount of spirit

Thanks!

For me:

1. 10m, Rdruid/disc/hpal as potential healing partners, 2/13h
2. Spirit > Crit > Haste > Mastery
3. ~13k fully buffed with spirit flask