This will get lotsa people on both sides of the sci-fi fence defending their favorite imaginary universe, but this is my take on it. In spite of the Federation's success against the Borg, I feel that the Borg would eventually defeat and assimilate the SW Empire. Here's my scenario: Borg cube detects a massive, artificial satellite. The complexity of the technology intrigues them. They move into the defensive perimeter of the Death Star, encountering warnings from a fleet of star destroyers to leave their space or be destroyed. The Borg do not respond, but instead continue to move in. The star destroyers begin to open fire, but their laser cannons are no match for the Borg shields. The Borg fire back. They take out segments of several star destroyers, analyzing and assimilating the technology, converting the corpses into organic nutrients for the collective. Tie fighters swarm the Borg vessel, but they are slowly swatted out like flies--or ignored entirely. Several star destroyers are completely destroyed. Others receive "visitors" from the Borg vessel, employing dematerialization--something the Empire is stunned by. The Borg gather tactical information on the fleet, but find the Death Star's specs encrypted and quite secure. But the relentless Borg do not give up. With the fleet wrecked, only a handful of tie fighters left, the Death Star begins to rotate in the direction of the Cube. The Emperor has given the order to prepare their doomsday weapon. He is notified that they too have received Borg scouts. He senses a powerful mind coming from the cube, and he determines why--it is the minds of the hundreds of thousands of Borg soldiers acting as one. He can not use the Force so easily here. He depends on his technological marvel instead. The scouts gather their tactical information of the Death Star, and beam back to their ship. They send a message to the Death Star. A concerned and curious Emperor gives the order to let it through. "We have analyzed your defensive capabilities as unable to withstand us. If you attempt to defend yourselves, you will be punished." Emperor Palpatine responds: "Who..." He is cut off. Out of his swelling anger and hatred, Emp Palpatine gives the command: "Fire into the heart of that ship, commander!" He does. A brilliant green flash emanates from the giant sphere. The cube is obliterated. The emperor gives the order to scan for additional cubes, but none are found. His concern now is that rebel forces will be able to take advantage of a depleted imperial military, so he gives the order to regroup and rebuild as quickly as possible. 6 months later... A new Borg cube enters into imperial space. Many star destroyers have been reconstructed and now have advanced weaponry. But they are still no match for the Borg. After some minimal damage to the cube, they adapt and become impervious yet again. The emperor wastes no time this time. He doesn't want his healing fleet to suffer any more damage. He gives the order to blow this cube out of the sky--again. Their super-weapon powers up. A dozen or so individual green beams unite into one and strike the Borg cube. A brilliant yellow-green flash emanates from the strike point--but the massive, industrial-looking cube is undamaged. A sense of dread comes over the emperor and Darth Vader--these people have the ability to adapt! They need to depend on the Force. The cube moves in and fires its energy weapons at several key points, eventually knocking out the shields and great weapon of the Death Star. They are toothless. The Borg cube begins to laser-out chunks of the Death Star, digesting them. Borg soldiers beam onto the Death Star in large numbers, easily overpowering and assimilating many storm troopers. They also begin to assimilate the Death Star itself. The order was given to put the Death Star into self-destruct mode, but it was too late. The Borg had taken control of the computers. The Emperor and Darth Vader try to use mind control to stop the individual Borg soldiers, but are no match for the power of their collective mind. They're able to strike a few down with light sabres and energy bursts from their hands. But the Borg adapt quickly. Their only recourse is to escape. Within weeks, the empire becomes a massive Borg colony. No more life on any imperial or rebel planets--except for Borg. The Borg have won. The Jedi and other surviving members of the empire and rebel forces have run for their lives. But the society they once knew is gone. Their only hope is to regroup elsewhere and try to rebuild their civilization--as far from the Borg as possible.