@Kobra678: Its impossible to tell as the speeds aren't stated.
According to OBD calcs, Soifon and those above her are mach 98, while 23rd BT Goku is mach 89.
@Kobra678: Oh damn, they just edited the wiki today. I think they found a problem with the mach 98 calc. Speed remains a completely unquantifiable factor.
Btw Goku can win if he can speedblitz everyone and blast them all with a kamehameha. If he can't blitz, Yama roasts him using ZnT.