I think MED is just fine, and the only real thing you need to do with it is to convert models from third party tools to gamestudio format. And you need WED to place the models in you made with third party tools. Thats all you need to make a nice environment, and I've done some nice scenes with A6, the editors are the least things I complain about with gamestudio.

I just wished they improved the workflow for 2D stuffs such as panels. Something like flash would be very nice. A simple timeline and assign transform, color and movement actions to panels from here. Call this timeline-object anytime and your interface animation will play. Something simple like that as a start, how hard can that be to construct.

It would open up a lot of possibilities for nice moving and changing interfaces, buttons, menu's. Just alot more dynamics for the 2D engine. Especially for non shader and even non programmer artists.