I think a lot of it has to do with the level of the players. I agree that this is a very broad question, but the higher up you go, I think the more officious you need to be.
Personally, I try to call a consistent game no matter what, but I'm certainly less picky about things at the 6/7 grade level than a JV game.
I hear some people talk about officiating a 6th grade girls game like it was the state championship. That is a little over the top IMO.