17PM will be the largest and heaviest tech packed with all the bells and whistles.
If you are planning on using all that tech, need the longer battery life, then it's the right move.
If not, like myself who hardly uses the Pro features (I got mine for the color) then it's a waste. My battery is at 50% by the end of my day so I don't need the larger battery. I never use video or fancy photo lenses - just a point and shoot type of user. Sort of miss my 14+ with lighter weight, long battery life and large screen.
This year I am switching from the 16 Pro to 17 Air and I will be much happier with a lighter and thinner phone with a large display.