>>12126167
>>12128998
In Famicom wars the AI isn't very good, but in SFC Wars it definitely is better than in the GBA games. On top of this generals are unbalanced, on purpose, so you can alter difficulty that way by choosing your and the AI's general accordingly.
Also there are a few mechanical differences the most important one being that only the bases near your HQ can build units, the other bases you capture along the way are only for refueling. SFC Wars has optional lvl/exp for units too, up to lvl3.
SFC also has some really fucking hard maps later on