You would be mad to use anything but .sit.hqx in my opinion. I keep my archived programs and data stuffed using StuffitLite 3.6 since it's a format that pretty much all my macs can handle. Binhexing just makes it a little safer and easier to transfer, but it is not crucial I guess.
My Apple collection is primarily built around System coverage - I can run all versions of the MacOS with those machines up to OS X 10.3 (excluding A/UX 1.0 because I don't have it and I don't think it supports any of my NuBus video cards anyway...) I can also do all the Apple II OS versions except for GSOS, but since I never used an Apple II gs, and it arrived after Macs, I haven't got much attachment to it.
My Apple collection is primarily built around System coverage - I can run all versions of the MacOS with those machines up to OS X 10.3 (excluding A/UX 1.0 because I don't have it and I don't think it supports any of my NuBus video cards anyway...) I can also do all the Apple II OS versions except for GSOS, but since I never used an Apple II gs, and it arrived after Macs, I haven't got much attachment to it.