Okay, I've rewritten some of the feats. Just wanted to make sure this is the sort of webtastic material you're looking for in the fluff and crunch departments.
Amicable [Godsmen]
You are better liked than the average Godsman.
Benefit: It’s a well established fact that the Godsmen respect everyone and their potential to be a god. You’d have to be quite addled to not accept this. But even among the Godsmen there are those rare few you can’t seem to bring yourself to hate, no matter how hard you try. By taking this feat, you increase the DC of Sense motive checks used against you by +2. Additionally, any failures to improve someone’s attitude towards you can only worsen it by one step (e.g. friendly to indifferent) per hour.
Normal: Without this feat, Diplomacy failures can worsen attitudes dependent not only on their rolls, but sub-sequent failures can deteriorate attitudes at a rapid pace.
Yup, looks good. Much better fluff.
But what would account for this uncanny ability? Is it their good looks? Charming manner? Respect for all other beliefs? Might want to mention that, so the player who takes this feats knows how to roleplay it.
One small problem: "But even among the Godsmen..." implies that the Godsmen are generally not well-liked, whereas I believe it's the opposite. You may want to rephrase that.