Visually, I would prefer grass strips.
I remember watching "Piece of Cake" years ago and thinking that the spitfires looked really cool bouncing down the grassy fields in France and England...
My preference would be to rough up various patches of terrain outside of the airfield - make it a chance to land away from the field - might get it down in one piece, might not - as this would add a nifty bit of realism - and then to count any place on the airfield as being 'landed'.
I often get "You have ditched" when I am firmly on the paved runway, which is no way to go out!
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