The Star Trek mirror universe federation is at least as bad as Star Wars' Empire

While the Terran Empire has the better defended ships and armaments which can destroy the surface of a planet. In order to destroy the surface, the Constitution vessels have to fire multiple times under sustained bombardment which makes them vulnerable whereas the Death Star is a one shot one kill. Also, the Death Star not simply irradiates and obliterates the surface of planets but completely pulverizes the entire planet. This introduces the effect of fear that the Constitution phasers and photons simply cannot match and fear is a very powerful weapon. As to the Death Star's firing range it is indeed over two times greater than that of a Constitution vessel at 2 million km http://starwars.wikia.com.... Further, the Death Star also had the ability to rapidly destroy several ships with its super laser as was seen in the Return of the Jedi. Also, the Death Star is the size of a small moon and would thus require countless blasts to its external shell completely pulverise it and render it useless. Also, one should not forget the fact that the empire has the capacity to build far more ships and man them quickly than the Terran Empire does due to Palpatine's access to an entire galaxy of resources and a steady flow of clone soldiers neither of which the Terran Empire has. This means that the Death Star could be protected by hundreds of star destroyers and thousands of TIE fighters at a time and do considerable damage before any vessels got close enough to launch a torpedo down the exhaust port. Really the only reason that the first Death Star was blown up is that Tarkin failed to think of blowing up the gas giant first and then the rebel base. http://www.youtube.com...The Empire is further boosted over the Terran Empire when the stability of its command structure and culture as compared with the instability of the Terran Empire is taken into account.Also, the resources of the Empire make the occupation of other worlds a cinch whereas the Terran Empire has a limited supply of soldiers and can become thinly spread very easily. This was seen in the Star Trek: Enterprise season four two parter "In a Mirror Darkly," where the Terran Empire had to resort to having aliens of multiple oppressed worlds in order to man their vessels, aliens whose species were also fighting in the rebellion. Indeed these episodes bring another issue with the Terran Empire to light, their inability to innovate technologically. Here it was shown that the Constitution class of the Terran Empire was not of their making but was instead stolen from Tholians who had stolen it from the original Star Trek universe. Then, nearly a century later, they are using the same class of vessel for their flagship the ISS Enterprise as was shown in the TOS episode "Mirror Mirror." The Empire meanwhile utilizes its vast galactic diversity to its advantage in producing its weapons. The Death Star, for example, was of Geonosian design while the clones come from Camino with armor that was initially partially based on that of the Mandalorians while the weapons of the clone army and the star destroyers were original Republic designs that advanced as the Republic faded into the Empire. In fact, the clone weapons also advanced over this time and even during the Clone Wars while the Death Star I was seen to have a slow firing sequence and the Death Star II, just a few years later had greatly improved the rapidity of its firing.CONCLUSIONThe firepower of the Empire is comparable if not greater than that of the Terran Empire and its vast resources coupled with its inherent stability and ability to rapidly advance its military technology from a wide variety of alien cultures both willing and reluctant make it a far greater threat than the resource starved, meta-stable, and technologically slow Terran Empire. Finally, we must not forget the fear factor that the rapid destruction of an entire planet has as compared with the slow battering of its surface. Indeed the Death Star is analogous to atom bombing Hiroshima while a barrage of phasers and photons is analogous with firebombing Tokyo.