2 - Don't worry, you were not blunt But I think you're forgetting about a familiar's strongest ability: share spells. With that, characters able cast Polymorph (like adepts and shrine warriors) can essentially turn their familiar into something really big, like a 12-headed pyrohydra, while turning themselves into something equally big, like a Fire Giant, with a single spell. If you also chose something like the Strength domain, you're just one standard action away from Righteous Might, which will affect both you and your familiar. Then you can proceed to win the internet In this, both familiars and animal companions are similar, since they both have share spells, but familiars end up being slightly better because they get to keep their increased Intelligence while under Polymorph, even if they are somewhat worse otherwise. Familiars are more "burst damage", if it were, while animal companions are more "lasting strength". Reading me write about it, though, this DOES sound like an optimizer's rant, which is okay for playing and DMing, but not for class designing... This class would classify for the Unearthed Arcana's Simple Sorcerer/Wizard Variant, though. A half-class level animal companion might be good enough, since I don't want this to be too strong.
3 - About the special abilities, this is a nice idea! Those Bonus Feats are there more to keep the class more interesting on the long run, but they can easily be replaced (or complemented). Would you care to elaborate?
Anyways, thank you very much for the critiques, eftexar!