Hi Nigd3,
Sounds simple doesnt it; what and how would you change stuff in your cockpit? Don't think it is quite that simple, firstly;
Cockpit needs to be considered as a whole, just chucking in a different AI, no matter how intuitive it is, will only work if it complements all the other aspects of the cockpit. Lighting, FoV, glare, compatibility with data sources, redundancy and loads of other guff.
Secondly;
What are you going to use the ac for? If the role is to remain unchanged this makes things simpler but if the cockpit works as is why change it? If you are upgrading cockpit dispalys for an enhanced or completely new role then this needs to a critical part of your assessment.
Whatever you are looking for good luck but if it is an answer to the skypointer vs earthpointer argument you will never please everybody