Hypersmurf
Moderatarrrrh...
So yes, Restoration is cheaper (even than Raise Dead, which I was referring to with "lose one level for sure") but it removes only one negative level.
It removes all negative levels. It only restores one level that's been permanently lost.
(Know your terminology, man

I must admit, I missed the "lose one level for sure" - I was thinking True Resurrection to avoid the level loss completely.
But Restoration is still cheaper, better, and just more conceivable (I mean, really - volunteering to be killed? That's not normal behaviour

-Hyp.