Agree no right or wrong answer - its all down to taste.
At least if its factory fitted you won't have the potential paint-match issues if you decide to add one later on.
I have over-riders but also like the look of the valance.
Agree..it is down to personal taste...I am in the process of taking the over riders off my Roadster and fitting a new full width front bumper...I prefer the "retro" or "proper" Morgan face at the front