I will tell you of our experience and what we do. We started a routine early on and I wouldn't say it's chafed, but has evolved with his age. We started out with a picture board of his favorite character from Blues Clues when he was 2 and we started putting him to bed like a big boy. It had a picture for each thing he was to do before bed and it hung on the wall. At bedtime we would go through them one at a time getting them do then getting gin bed.
Now, that he is 4, we don't use a picture board, we tell him to brush hi teeth and get his night clothes on. We cannot proclaim it's bedtime-using the word bedtime really upsets him. So we tell jim it's time to get his rest so he can play the next day.
He is now starting to give us problems and doesn't want to go to bed. We still don't use the word bedtime but have now started giving him choices - only two choices at a time. Example: what would you like to listen to, author or dinasours before dark? Would you like the door open or closed?
What really calms him down is asking him what he is going to dream of and what he would like me to dream? This distracts him.
If he comes out of his room, I point and say back in bed. He will usually scream but I ignore it while asking him if he now wants his door open or closed.we may do this a few times but I make sure I tell him I love you and will see you at breakfast.
Hope that helps.