The Star Wars vs. Star Trek fandom rivalry is a myth.

[Bavarian itP]

Geeks of all fandoms unite! Take up your phasers and lightsabers, beat down the doors of the ignorant masses and make them hear...that lightsabers are found in Star Wars and phasers in Star Trek.

Also:

Photon torpedoes - Star Trek
Proton torpedoes - Star Wars