imitating 8-bit music with built-in synths

I have a computer program, Anvil Studio, which comes with built-in instrument sounds.  Among those sounds are leads and pads.  I figure the leads would be best to use to quickly create an 8-bit sound, but which lead would be best?  (square, sawtooth, calliope, chiff, charang, voice, fifths, or bass+lead)

Also, would 8-bit drums be an electric snare/electric bass drum, or what?

Sorry for the long question.

Before you can make chip music, you must understand the sounds.

If you cannot tell the difference between the different waveforms just by hearing them, if you do not yet know what sorts of sounds each waveform can create, if you do not know how to create layer upon layer of sound with only three channels to work with, you can never hope to make chip music.