Darth_Glentract
The Truest Sith Lord
Star Wars:
Planetary destruction: Death Star blast (roughly 20 billion trillion megatons, ie- the number "two" followed by 22 zeroes). Planet blown apart at 5% of the speed of light. Even if we assume the shot was time-lapse photography (not that there's any reason to), the absolute lower limit is roughly 50 quadrillion megatons. Note that even if you scale this monster down by a factor of 10 million (to the volume of a Star Destroyer), you'd still have 5 billion megatons. More than a match for poor Enterprise.
Star Trek:
Planetary destruction: 30-ship bombardment in "The Die is Cast" (surface-level explosions create fireballs in the megaton range at most, judging from fireball duration). No sub-orbital ejecta launched from planet's surface at all. Trekkies attempt to ignore weak-kneed appearance of attack and focus on semantics in order to exaggerate the figure.
Star Wars:
Asteroid destruction: Jango Fett's seismic charges destroy asteroids in a radius of 5-10 km in AOTC.
Star Trek:
Asteroid destruction: according to Riker, it would take the entire photon torpedo payload to destroy a single 5km wide hollow asteroid in "Pegasus". In other words, it would take the entire payload of the Enterprise-D (a capital warship with a crew of a thousand) to equal just one of Jango Fett's seismic charges (a bounty hunter's weapon).
Star Wars:
Combat range: in ROTJ, combat initially occurs at ranges of a few thousands kilometres, eventually closing to a few hundred kilometres ("point blank" according to Lando) until Rebel ships are within a few dozen kilometres of the Executor.
Star Trek:Combat range: fleet actions in DS9 uniformly feature engagements at ranges of 5 km or less, just as they do in TNG's Klingon wars or Borg engagements. In "The Die is Cast", Sisko actually orders the Defiant to approach to 500 metres (while taking fire) before shooting at a Jem'Hadar attack ship, presumably due to some disadvantage incurred at longer range. The only long-ranged incidents involve stationary or near-stationary targets.
Star Wars:
Speed: travel from galactic core systems to outer rim systems ("halfway across the galaxy" as Amidala put it) is shown repeatedly in ANH, TPM, and AOTC. It is invariably same-day traffic, typically a few hours.
Star Trek:
Speed: Voyager took 7 years to crawl across part of one quadrant of the galaxy, even with repeated assists from alien races, stolen technology, and even the occasional shove from a godlike being. Not hours ... years.