When comparing two sci-fi universes, it helps to define just what you’re comparing. This website deals specifically with engagements involving two popular sci-fi powers . . . the Federation of Star Trek and the Empire of Star Wars . . . which (for these purposes only) are considered as real, actual entities, with technology that actually works (whether or not we understand how), and with histories and facts of their natures which are assumed to be internally consistent, in spite of whatever continuity errors or general peculiarities might creep in.
Good ole internet!
Update: Someone edited together Star Trek and Star Wars clips to depict a showdown between the Enterprise and A Death Star.