Welcome to Basenotes! As for sleepers, I don't really know what to suggest - you already have some amazing frags on your list!
The only thing I can really think of is Millesime Imperial by Creed, but you'll probably get frustrated when all of your college cohorts mistake it for Sean John Unforgivable (happened to me a few times). Creed Himalaya is also quite amazing, if you don't mind shelling out for it.