The Galaxy Gun as a favorite with design reservations

Which doomsday weapon is a favorite from a science-fiction series watched less often?

The Galaxy Gun, qualified by a wish for better design and more examples of the weapon.

No least favorite science-fiction series is selected, so the question shifts to one watched less often. Among the Star Wars weapons, the Galaxy Gun receives the strongest personal preference. Its design and the small number built remain criticisms even within that preference.