Bloodwych WinVice is awesome imo, I didn't know about the zip thing though, although tbh how much bigger is the file unzipped eh, cmon
CCS64 is a very good/accurate c64 emulator too.
The multi-pack games for ST are by DBug and Automation if I recall, I have single games too though, they are about you just need to google harder
For Snes I use SnesX9 and the great Zsnes and for Megadrive I use Kega Fusion.
Btw WinVice has nightly build updates here http://vice.pokefinder.org/
Micro64 I didn't get on with, didn't like it.