Have you tried playing any of the PC versions (X68000, FM-Towns etc.)?
I know for a fact that the SFC port of Emerald Dragon is really bad and that D considers the FM-Towns version to be the best version of the game. It could also be that the PC Engine port of EM is also bad.
I have seen a lot of people speak very highly of ED. Can you do AI presets, or do the characters just do whatever they want and you have no input whatsoever?
I don't know how I missed these two posts.
I'm pretty sure that all versions of ED have the same basic battle engine, which means no input for any of the secondary characters. I'm pretty sure there was some kind of AI preset, but IIRC it wasn't something that you would change frequently. I can't remember, though. It's been about 8 years.
The X68000 version and the FM Towns version are similar, and they share the same art style for the cutscenes. The FM Towns version has CD music, narrated cutscenes and touched up graphics, so it wins out. Beyond that, I don't know what the differences are. One of these days, I just might check. Even the FM Towns version is ripped and emulate-able, after all.