So, who's going to do the Fusion + Emplant versus Shapeshifter speed/compatibility comparison?:p
I don't have any benchmarks to give but i ran both emplant and fusion for many years and threw about everything i could find at them. I found fusion worked very well without a emplant and never noticed any of the problems Jim mentions could arise(thats not to say they were'nt there) i just didn't notice them so fusion was pretty rock solid with my picasso IV in a A4000 and looked pretty good with the 256+ colors using picasso IV fusion drivers.
I seem to recall in the end i had macos 8x updated to i think 8.2 running.
In the early days i used the emplant ports to hook to laser printers to tinker with using macprint(i think it was). It was also good for running early IE/netscape and later Icab sharing the amiga's ethernet connection- It was a way to have a somewhat modern browser in early times(although Ibrowse was great in the pre flash/java/bloated web stuff era). I do think fusion was as fast or faster than the emplant but again i don't have any hard data to back that up.
Mech