Paco Robanne is lovely, but it's something a LOT of guys wear, and it's extremely strong - and not a very natural 'masculine' scent, it has it's own distinctive, musky smell. I do actually really like it, but I have to say, after a while it can get a little much.
Ny number one will always be Armani Code. Armani Code to me is the thing that men should want to smell of - clean, fresh but with a hint of something very musky. It smells like something guys naturally smell of well, it just seems to compliment their skin and it's the kind of thing that when you breathe from their neck, you just want to bury your nose in deeper. I don't know one person who does not like this cologne.