Fuji Neopan 1600. Fuji Fortia. Kodak Aerochrome. Hasselblad V system (OK, they do exist but are discontinued and becoming increasingly more expensive to maintain).

Agfa Scala, a wonderful B&W positive film. I have boxes of 6x6 slides and from time to time we watch then at home and it's just amazing.

Provia 400x :(