zackster The hierarchy of live British dance act duos, from the golden age, is as follows:
Underworld
The Orb
FSOL
Orbital
The Prodigy
Basement Jaxx
The Chemical Bros.
Without wishing to get too bogged down with the contents of your list, The Prodigy have to be no.1 (regardless of what happened after FotL).
Also, do you know what “duo” means?!