From the get-go the Rebels vexed the Empire. The setup was highly irregular and nonconformist: the Rebels garrisoned no resource planets and concentrated all of their troops on two systems. The result was Hutts beginning with 6 resource planets and heavy Rebel concentrations on Da Soocha V and Dathomir. The initial Rebel assault ran from Dathomir through Tatooine, Wayland, Alderran, Correlia, and Byss, stopping only at the Imperial firewall on Bakura. A lesser but still damaging attack started in Da Soocha V and took out the Empire's single garrisons on Toydaria, Bothawui, Kothlis, Falleen, and Coruscant. The result was a mere 3 reinforcement for the Storm Troopers in their first turn.
By soldiering on gamely, the Sith Lord slowly recovered strength. When the Rebels captured the Outer Rim, they were able to mount an effective counter-attack two turns later. They managed to push the Hutts out of the Wild Space and made it their last stand.
The Rebels were unable to break through the Hutt blockade at Sluis Van and so had to attack Gamorr and Excarga. With the Emperor safe for the time on Elom, the Hutts struck hard with a multi-pronged assault that carried the day with resource planets captured at Bespin and throughout the Mid Rim. Victory Hutts.
Above, a 10 sec mini-video #throughglass showing some of the desperate action late in the game as the Sith Lord holds off the Hutts.