Hi (y')all, I'd like to point out that GE should be able to load 3D object files (can it?) and if not or whatever, Can it do wire frame 3D with textures?
Unless you can be content with 3D of lesser caliber than what could be possible on the SNES then way you'll be disappointed with GE. Game Editor is a 2D game creation software and apart from the unflexable resolutions and the absence of scaling, GE does 2D very well.