Thanee
Conviction/Superior Resistance/Greater Resistance: You do have a good point regarding the duration. However a resistance bonus is still much more valuable than a morale bonus. With that in mind, let's make the following adjustments. Change the duration of
conviction and
greater resistance to 1 minute/level. Change the duration of
superior resistance to 10 minutes/level (keep the +6 bonus).
Resurgence: fine.
Divine Insight: fine.
Ghost Touch Armor: fine.
Benediction:
Blindsight: fine.
Mass Conviction: fine, but with a 1 minute/level duration.
Mass Lesser Vigor: fine.
Channeled Divine Shield:
Panacea: fine.
Revivify: fine.
Surge of Fortune: fine, except that instead of the immediate action to treat a roll as a natural 20, it is treated as an automatic success. If used for an attack roll, you still get to roll to see if it is a critical threat. This change is mainly to prevent abuse with vorpal weapons and similar critical hit special abilities.
Energy Immunity: fine, but with a duration of 1 hour/level.
Planar Exchange: fine.
Greater Plane Shift: fine.
Mass Spell Resistance: fine.
Renewal Pact: fine.
Vest of Resistance: fine. Reference the level according to the appendix, depending on which vest you want.
Monocle of Perusal: fine.
Armor/Weapon Enhancements: use caster level.
Anklet of Translocation: Maybe I failed to mention this before, but I allowed you to use another caster for the spells in crafting other items because they were 3rd level or lower. If you need access to a spell 4th level or higher, you can't make it.
Vertexx69
Armor Specialization: fine.
Ancestral Relic: fine.
Rathan
The feat you mention only applies to DR that the character possesses naturally, either through a class or racial ability. It doesn't apply to DR granted by items. In the case of Armor Specialization, the DR only applies when wearing armor, thus the DR is item-dependent and not wholly a natural ability.