However, as a player, the group I am with is being forced to turn over our newly found treasure (a magic device. what it does, we don't know yet, but someone offered us 800gp to get it) to YourStandardAdventuringGroup. It's a halfling thief, a human sorcerer, dwarf fighter, etc etc. While we have made a diplomatic solution to the situation (at least, a partial solution, we're still minus the payment promised by contract), we are considering combat to resolve the rest of the situation, but our DM absolutely refuses to give us any indication at all of what these characters levels are. "How big does he look?" "Dwarf sized." "Gee, really, the dwarf is dwarf size? Alright, that helped us out a lot, thanks!"
What kind of skill or ability can be used to determine another characters level in relation to your own? I don't think whatever it is should be charisma based (like diplomacy) because even noncharasmatic people in a bar can take aquick glance around and see who they can take on and who they shouldn't mess with. Heck, even stupid people usually can, tho sometimes they don't really head the warnings from themselves ... so I'm tihnking more of a wisdom based something instead.