I definitely prefer black and white with my Xenotar Rolleiflex. I too also prefer colour with my Hasselblad Planar (1992). Xenotar is vibrant, but cooler. Planar is very slightly punchy and warmer.
Hasselblad 503cx, Carl Zeiss Planar 80/2.8 CF, 81b filter, Provia 100F
Rolleiflex 75/3.5 Xenotar, f22, 1 sec, Acros 100