How these feats work? Stack Feats

[saitoalan22]

How fuction this feats in a prestige class

Bard 1 / Cleric 5 / Prestige Paladin 2 / Heartfire Fanner 5 / Knigth of the Raven 7

or only funcion in

Bard 1 / Cleric 19 or Paladin /19

Heartfire Fanner
Bardic Music: At 1st level, the heartfire fanner gains the bardic music ability as a 5th-level bard if he did not already have it from a previous class. All the bardic music effects (countersong, fascinate, inspire competence, inspire courage, inspire greatness, inspire heroics, song of freedom, suggestion and mass suggestion) become available to him immediately, subject to their usual Performance skill and level requirements (see Bard). A heartfire fanner's class levels stack with any bard levels for all bardic music calculations, including the number of uses of bardic music available per day. The heartfire fanner with bard levels does not gain the normal bardic music abilities as he advances in heartfire fanner levels.

Devoted Performer

You have foregone the pursuit of frivolous musical talents, instead entering religious training in service of honor and justice.
Prerequisite: Bardic music, smite evil.
Benefit: If you have levels in paladin and bard, those levels stack for the purpose of determining the bonus damage dealt by your smite evil ability and determining the number of times per day that you can use your bardic music. This feat does not allow additional daily uses of smite evil or bardic music abilities beyond what your class levels would normally allow.
In addition, you can multiclass freely between the paladin and bard classes and may even gain additional bard levels regardless of your lawful alignment. You must still remain lawful good in order to retain your paladin abilities and take paladin levels. You still face the normal XP penalties for having multiple classes more than one level apart.


Divine Inspiration

Your piety grants you the ability to aid your friends to a level beyond your natural skills.
Prerequisite: Bardic music ability, ability to turn undead.
Benefit: Your bard and cleric levels stack for the purpose of determining your bardic music ability. For example, a human 5th-level bard/1st-level cleric with 9 ranks in a Perform skill could use the suggestion bardic music ability.
In addition, Perform is always a class skill for you.


Sacred Performer
You invest a little bit of your piety into your every performance.
Prerequisite: Bardic music ability, ability to turn or rebuke undead.
Benefit: Your bard and cleric levels stack for the purpose of determining your turning check and turning damage. For example, a 4th-level bard/1st-level cleric turns or rebukes undead as a 5th-level cleric.
Your bard and cleric levels also stack for the purpose of determining the number of times per day you can use your bardic music (although this does not affect which bardic music abilities you can use). For example, a 5th-level bard/4th-level cleric receives a bonus equal to 9 (the sum of his bard and cleric levels) + Intelligence bonus (if any) on his bardic knowledge checks, and he can use bardic music 9 times per day.
Special: Deities most likely to accept Sacred Performer: Lliira, Milil, Oghma, Sharess, and Sune

[Toliudar]

Here's my understanding, building off your first build listed.

Prestige Paladin is not the same class as Paladin. Your build as articulated and those three feats would get bardic abilities up to 6th level (plus all the special uses for bardic music from Heartfire Fanner), and would have 11 uses of bardic music/day. It would turn undead as a 15th level cleric.

If you can convince your DM that a Prestige Paladin counts for dedicated performer, you smite as a 3rd level paladin, and you add 2 uses of bardic music per day.

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Opinion: unless you're heading into an extremely undead-heavy campaign, none of these feats are worth the opportunity cost for the build described. Maybe for the Bard 1/Cleric or Paladin X build, if X is very large and you actually thought you'd use Inspire Courage a lot.