I have 3 screens ‘active’ on my Garmin 1000 and swipe between them as needed during a ride. I only have four per page so I have nice big numbers.
I might replace cadence with HR depending, but mostly I review my HR data post ride and rely on the power meter data in ride.
screen 1
speed
duration (time)
power
cadence
screen 2 (for climbing or strava segments on hills if you have Strava Live enabled)
speed
power
ft climbed (lap)
hill incline %
screen 3 (misc. stuff)
total distance
distance to next turn
Temperature
time of day