I have 810, my front screen which is always on is as follows:
Power 3s
HR
Cadence
Distance
Elapsed Time
I have a second screen that shows my avg speed, avg cadence, ascent, time of day etc.
RT power is useless, I wouldn't bother with it and just use 3s avg power as your main readout. I think first screen is much better as least cluttered as possible, just keep it to your key performance indidcators so power, HR, cadence and other fundementals. Your averages/time of day and things like that better off on another screen out the way as it's something you check periodically rather than needing to see every time you look at the device.