sledged said:
If you make the bard, paladin, and ranger classes PrCs, with what core class would you replace a race's favored class? Would you use a blanket rule (e.g. all races that had paladin as a favored class now have fighter as a favored class), or would you do it on a case-by-case basis?
For the Paladin and the Ranger it is quite straightforward:
The prestige Paladin requires you to be able to cast Protection from Evil as divine spell + turn undead, and only the Cleric can do those within core classes. That means you HAVE to be a Cleric (1 level at least) to become a Paladin.
Therefore you should replace favored class Paladin with Cleric.
The prestige Ranger requires you to be able to cast Calm Animals as divine spell, and only the Druid (or a Cleric with Animal domain) can do that within core classes. That means you HAVE to be either a Druid or a Cleric with Animal domain (1 level at least) to become a Ranger.
If we have to choose one, it's obviously more appropriate to choose Druid.
The prestigious Bard is different because you can qualify either with Wizard or Sorcerer levels, which makes for interesting variant bards IMHO.
On the other hand, the Rogue is the only other core class with Perform as class skill, which means that whatever core arcane spellcaster you are, to become a Bard you either have to (1) wait until level 14 or (2) take at least a level of Rogue (or otherwise find non-core ways to get 8 Perform ranks earlier).
For this reason I would replace favored class Bard with Rogue.