Q: Uncompressed MOV? Does it exist?
A: Yes.
Q: Is there any way to convert MOV to
Huffyuv AVI without loss of information?
A: I don't believe so, no. However I've also never tried.
Huffyuv and ProRes422 are usually far more desirable.
I can't do it today, but I'll look at some of the export options in FCP and Premiere Pro on Mac. (Tomorrow.) There may be a way to export to AVI. I don't know all of the options off-hand because Mac is generally only good for a few workflows, and I'm very tunnel-vision when using one.