> On that note, I think Str/Con weapon upgrades should show up under "Weapon" ("Armor") and not under "Strength" ("Constitution") when viewing a party. I think it would make the stat breakdown more realistic, since those upgrades don't belong to the character in any meaningful way.

I've thought this as well. The trick is that there wouldn't be a spot to list strength bonuses belonging to armor, or constitution bonuses belonging to a weapon. Plus, the distinction between strength and weapon class, despite being nothing but semantic, would be confused. I agree, though, that listing strength and constitution after equipment bonuses are applied is not especially useful.