FormerlyHemlock
Hero
None of the so called "non combat" feats would have done much for my character. My charisma was too low to make use of actor (and I never had an opportunity to disguise myself as someone else). Traps aren't frequent enough for dungeon delver to be useful. If I took skilled, I still would have been worse at every single skill check than someone else in the party.
It sounds like you want someone who is not just competent at something but the hands-down best at it. Presumably you have a highly-specialized and highly-cohesive party--you say it's a negative to have someone who is better at a skill than you, so I'm guessing this is one of those parties where e.g. only the Face is allowed to talk to NPCs, and if you have a good idea during negotiations ("hey, why don't we offer them half of the treasure in order to join us?") you write it down on a piece of paper and pass it to the Face. Presumably sneaking is only done by the Monk/Rogue with maximized Stealth. I'm not trying to be snarky here, just trying to confirm my guess before offering a suggestion:
In this kind of party, if I wanted to be a "fighter with a shtick," I'd probably pick up the Healer feat. Being the party Medic-with-a-Greataxe gives a lot of excellent RP flavor potential; it offers potentially interesting choices during combat ("do I heal my buddy or unleash another attack"); it transforms you from a one-dimensional character to a two-dimensional character; and it enhances party power by minimizing the amount of Clerical/Druid/Bardic power that has to go into healing wounds, leaving more for stuff like Conjure Animals and Guardian of the Faith.
The other option would be to pick up Lucky, which is kind of like +5 to any skill. You can be the guy who sneaks around successfully in heavy armor, the guy who just happens to know what a Rakshasa's vulnerability is, the guy who successfully climbs the menhir to retrieve the roc's egg (Athletics + high Str + Lucky probably does make you the best at Athetics even if there's a Valor Bard with Athletics Expertise in the party), etc. Also you can be the guy who doesn't get his brain eaten by intellect devourers, which is nice. Given your desire for out-of-combat utility I would have picked Lucky over Resilient (Wisdom).