For wearing with serious business suits, how big/loose should the shirt collar generally be? As in should there be ample space around your neck? Should the collar look firm and upright? Not sure how else to describe what I'm asking. Does this depend on the collar type? Thanks.
Edit: I have a similar shirt to this one and it's very tight around the neck and the collar is very thin, so that when worn with a tie, the collar kinda pulls upwards a bit and it's obvious that the collar's kind of flimsy:
vs.
This, I know it's a different type of collar, but it's bigger overall and I assume thicker, so that it'll look the same no matter how tight the tie is.