There's been a lot of talk lately about the Eldritch Guardian, which is a very fine and flavorful fighter. But for my money, the coolest thing from the Familiar Folio is the Spirit Binder wizard. It hasn't passed wholly without comment, but it hasn't gotten the same level of attention. As I totally want to play one at the next opportunity, I thought I'd make a thread specifically for them.
The basics are clear enough--your dead loved one should have been a paladin or perhaps a Ranger, for full BAB and two good saves. Mauler is an obvious archetype choice, but if you wish to be able to communicate with your loved one's spirit, what other archetypes work? Valet for Teamwork Feats in addition to the feats you give it at 5th, 10th, etc.? There's something flavorful to Figment, perhaps, but is it any good?
What feats should you give the Familiar, since it only gets a handful--though still more than a normal familiar, of course. Thematically, it would be great for them to be feats a Paladin or Ranger might have taken in life.
Also--Spirit Binder Familiars are noted to be able to be of any alignment, even those diametrically opposed to the Spirit Binder. How does this interact with the alignment requirements for taking various Improved Familiars?