i think this is fairly accurate....might be some room for debate or substitutions:
Phase 1
Padme (3.5 - 5%)
Vader/Wat (8-15%)
SEE (3-6%)
Phases 2-3 (with topple)
501st (4 – 6%)
SLKR with Nightsisters (8-18%)
SLKR with First Order (7-12%)
Vader/Wat (6-15%)
Imperial Troopers (4-8%)
Bounty Hunters (3-5%)
End of Phase 3 (save for phase 4 if possible, esp. without topple)
Jedi (4 – 6%)
Phase 4
Jedi (3-5%)
Jedi/Rey (6-9%)
Phase 4 – Kitchen Sink
Sith Empire (0.4-1%)
CLS (1-2%)
Separatist Droids (1-2%)