nittanytbone said:The inquisition domain allows you to get a +4 to your dispel checks, making the buffs harder to dispel.
Actually, you're not the one making a check when someone sends a dispel at you, so Inqusition won't help you save your spells.
I just don't use Persistant Spell in my games, at all. I've never seen anyone use it and actually pay the extra spell levels, it's always to abuse an "add metamagic for free" ability.