Different films for different moods and subjects. E.g. medium/large format in studio, defo 100 or 80 (fp4+, acros, reala, portra or tmx), outside with tripod, basically the same, outside handheld usually 400 or faster (fuji 400H, neopan, trix, tmy)
Different films for different effects. For projects I try to stay with the same film and dev.
So I can't really vote.