Clone wars:
Republic:
Episode 2/Clone Wars:
-17 SA Clones
-3 Value Pack Clone Troopers
-6 ARC Troopers
-2 ARC Captains
-2 Infantry Clones with Speeder Bikes
-2 Evolution Infantry Clones
-Commander Scorch
-Command Gunship
-ARC Trooper Republic Gunship
TOTAL: 33 Soldiers
4 Ships/ Vehicles
Episode Three:
-8 #65 501st Clone Troopers
-13 #26 Utapau Clone Troopers
-7 Infantry Clones (2 Tanks Gunners, 1 Jet Pack, 4 White SA)
-6 Shock Troopers (4 Quick Draw, 2 #41)
-8 Clone Pilots (4 White/Grey, 4 Black)
-6 Grey Clones (2 Evolutions, 4 Jet Pack)
-6 Clone Commanders (4 Red, 2 Green)
-5 AT-RT Drivers
-4 Saleucami Clone Troopers
-2 Commander Baccaras (1 Blue, 1 Normal)
-Commander Bly
-Commander Cody
-2 Spec Ops Soldiers (2 Utapau Shadow Troopers)
-AT-RT w/ Driver
-Commander Gree
TOTAL: 72 Soldiers
1 Vehicle
Separatists:
-11 Nemoidian Warriors
-2 Nemoidian Commanders
-6 Battle Droids (2 ROTS, 4 Clone Wars)
-6 Super Battle Droids (2 ROTS, 4 Clone Wars)
-7 Destroyer Droids (2 ROTS, 5 Clone Wars)
-1 Destroyer Droid Launcher
-3 Spider Droids (2 Clone Wars, 1 ROTS)
-AAT
-Hailfire Droid
-Sun Fac
-Geonosian Fighter
-Droid Tri-Fighter
-2 Vulture Droids (1 Blue, 1 Green)
-7 Buzz Droids
TOTAL: 40 Soldiers
10 Ships/ Vehicles
Galactic Civil War:Galactic Empire:
-7 Sandtroopers (5 TSC, 2 Poop/Grey Evolutions)
-2 Scout Trooper (VTSC)
-2 Death Star Gunners (TSC)
-3 Snow Troopers (2 TSC, 1 TSC UGH )
-1 AT-AT Driver (TSC UGH)
-2 Storm Troopers (1 George Lucas, 1 DVD Set)
-1 Darth Vader Advanced TIE Fighter
-2 Imperial Guards (ROTS)
TOTAL: 21 Soldiers
1 Ship
Rebel Alliance:
-Bren Derlin
-Chief Cherpa
-General Reikann
-4 Endor Rebel Soldiers (Saga 2)
-Zev Senesca
-Rebel Alliance Modified Airspeeder
TOTAL: 8 Soldiers
1 Ship
Other:-3 Senate Guards (ROTS)
-12 Various Wookie Warriors (ROTS)
-1 Wookie Helicopter
-1 VTSC Sand People
-2 Utapau Warriors
-2 Fire Speeder Pilots
-3 Naboo Solider(TSC)
TOTAL: 20 Soldiers
1 Ship
Just to say a few things... I never mix Episode 2 and Episode 3, so for the Clone Wars it's either 33 against 40 or 72 against 40.
With my small Rebel Alliance, army, I like to arm and add Cantina Aliens/Jabba's Palace Aliens/Other Background Characters to those 4 Rebel Soldiers. I find that the Naboo Soldiers are good as early Rebel Alliance troops. When I add the aliens and other figures, my Rebel Alliance army is almost equal to my Imperial Army. Only for 19 days, though, as I'm getting an AT-AT on my B-Day this year.

-Greg