Can't recall exactly, but a few come to mind. Acqua di Gio and CK One 100ml sizes when I was a pre-teen wouldn't last long for some reason lol.
During my high school years, Green Irish Tweed 2.5oz would last at least 2-3 months. Edit; I believe I was in rotation with Millesime Imperial at the time. I remember going thru a few 2.5oz of different Creeds a year but only because I would beg my father to give me testers when I was running out, lol...I hate this thread already Imagine how I was when Aventus came out 75ml at least every 3 months.
Also, I have a friend who has gone/goes through one bottle of 4oz Aventus a month. I might offend some die-hard fans, but I swear it's repulsive with that kind of usage lol.
Edit; "Wrongfully" offered to gift the father of a friend Versace Eros because he just wanted a nice looking cheapie. My friend ended up keeping it for himself (after gifting it to his dad). He now oversprays, you cannot breath if your in the same car as him.