For a NOTICE ME fragrance, heavy patchouli scents for me always seem to announce I'm there. Patchouli Leaves by Montale is one of my biggest powerhouse patchouli scents I have. H.O.T. Always has also garnered immediate attention when I walked into a bar no less. (it was only a few sprays and it was my friend that noticed but still ).
I agree with all the Montale Aoud votes as well. I really try to be conservative with those so I don't gas anyone out.
I also see Musc Ravageur as a powerhouse but again, that's something I try to be super light with application to keep it in check.