Being a pure STR hammer user cleric...
I maxed:
Heal - SP, Cooldown, Power
Rejuvinate - Power
Bash - Power, Cooldown
Invince - Buff Effect
Quicken - Cooldown
That's what I've done and it seems to work for me.~
When you start gaining more levels, SP becomes less of a concern to you.
For one, clerics can hold loads of SP stones, and like my Lv 84 can hold 317... if that's not enough SP potions are so easy and cheap to come across, lowering the SP consumption of anything other than heal is pointless in my mind.
