We do 2, 3, and 4. For us, the whole point of taking the car is so that we can go wherever we want and see everything there is to see along the way. Our next road trip is in May - we’re going from Calgary to Vancouver by way of Seattle, and I hope to see everything there is to see on that route. (I’ll have to post some threads to get some ideas about stuff that locals recommend between here and there.)
If I’ve got a good map and it looks like the back roads might be interesting, I’m all for taking the time to use them.