Where to locate light switches?
Sounds like you want 3 and 4 way switches everywhere. That’s fine. Designing where you put switches always should come back to how people use a room and putting a switch where they expect it. When using a 3 or 4 gang box the switch closest to the door should be the main light, the one you use most often. Then the lesser switches are farther from the doorway. It’s all common sense stuff. The only trick is to have the imagination to know how you’ll use a room when all that’s around you are bare studs. 

Bringing up motion sensors makes for an interesting twist. I am putting them in bathrooms more often now. My favorite use is to attach the undercabinet lights in a kitchen to the motion sensor. When someone walks in the undercabinets feel welcoming without overpowering. When walking in at night I don’t always want the overhead lights to come on at the brightness I cooked dinner at, but I’m always happy to have the undercabinets. If I went into the kitchen to cook I’m already trained to hit the switch for the overhead lights. 
So one option would be to put 3-way switches everywhere you’ll want them then next to that switch put a motion sensor that controls coved lighting in each room (its hard to say without seeing your house, but mine is from 1917 and every room except the kitchen has hanging picture molding and sometimes coved ceilings). I’ve seen that done well.