I intended to have a positive approach to my topic by reference to the best rather than the worst. On the whole all are really bad due in the main to the aerodynamics involved. However some are better than others and I just wanted to ask and highlight which are 'better because of' v 'compared to' with your reasons.
I am not involved in any design project, I just have had minor injuries when accessing and egressing certain cockpits and have seen that others have similar gripes.
On a tangent perhaps the design team at Bell have addressed this topic in the 429 design.