I like fuel pressure, afr, oil pressure, oil temperature, and coolant temp. Anything else is ancillary. And I use that dual innovate wideband on my boat and love it.
I have tach, speedo, oil pressure, coolant temp, voltage and fuel level on the dash, adding the dual Innovate and probably trans temp. I forgot about oil temp. Maybe I will put that in the 3rd spot of an underdash panel.