A very good question, that has already recieved a lot of intelligent answers.

I find, that some of the things marked as "want to change" is a result of gaming style. Take navies: They travel unrealistically, they fight unrealistically, and the results are (almost?) random. This could call for a revision of the concept, yet the very simplicity of naval affairs gives you time to think about other stuff, and even finish a game now and then. Yet the micromanager would want some more information, options and hands on-decisions. Many of the requests are "more options" like these (upgrade button, more unit stats ect.)

My gaming time is quite limited. So when I play, I want things to proceed a little faster. I want a challange, so there should be things that I need to choose between. Should I build those knights, or will a horde of slav warriors be better suited for the job? Should I build that castle, or hire those mercenaries? What I don't want is a lot of information and a lot of choices. It is striking a balance between simple and complex, yet bringing fun to the user.

Yes, granted, there are many things that work a little... funny... in MTW, yet I find that for a somewhat simple it is quite well buildt. UI can always be improved, I think that is true for almost any game. Some things can be modded, and have been - thank you guys. Yet, my list of things to change would be quite limited.

/KotR