I added a Schlumpf mountain drive to my 3 speed , it's a second planetary gear in the crankset.

now I have 6 ratios .. low is 250% of direct so a 3 speed will work ...

a 50t chainring acts like a 20t cog when in low range,
so hub low in direct range is followed by hub high,
in crank low reduction gear range.

YMMV

you can figure out which on your list will work for you
with learning the ratios in the hubs ,
and calculating what you need for chain rings and cog on the hub.
to best utilize those ,

get the gear range that works for you,& where you live.

sort out the external cog and chainring choices for your wheel size,
with Sheldon's site http://sheldonbrown.com/gears/internal.html