I guess I'll do the easiest one first (not that narrowing it down to five is easy, but hey.) I'm guessing you meant m/m and femmeslash. ;)

5. Christina Romney/Anya Rothrock (Losing Christina)
4. Adrian Veidt/Jon Osterman (Watchmen)
3. Tia Dalma/Elizabeth Swann (Pirates of the Caribbean)
2. Adrian Veidt/Dan Dreiberg (Watchmen)
1. Leon Orcot/Count D (Petshop of Horrors)

As you can see, I have a bit of a god/mortal thing.