hey, the beautiful flower would be great... like, you kill an orc, and he drops a rose and a love note to Zahira, you ask around town about Zahira, find her living in some swamp, look for the pigface, and deliver the note (of course lying to her about the circumstances of the orc's death)... and it just so happens the letter told her about the location of... (continue quest series).
But yeah, I don't want to see every clothing item of every foe fall when you kill him, like in TES, but it would definitely be cool if the loot foes dropped could be mostly usable stuff (like currency or crafting materials), and the 'bosses' or the more difficult foes drop their own special armor, or weapon. It's kind of annoying when you're playing this game, and you see an enemy and say "wow, I wish I could get that weapon", turns out it's only for such-and-such foe. No killing an ice mage and looting a fiery sword of Axe Mastery! Oh, Guild Wars.
