I say weapon because it gets to complicated with all the super powers you can get. Turning invisible, walking through walls, teleporting. So for this I want to limit it to sci fi weapons that at least attempt to have a tech basis. So like not the masters device that turns people into dolls. However we don’t care if we can completely explain how it might be done now. Like lightsabers are fair game. As for me I would go with the star gate zat guns as initially put in. Both lethal and nonlethas and very portable. I want to put an honorable mention for tthe minority report sonic shotgun that seems to run on wind up energy so you should never theoretically run out of ammo. although not so sure as there was no indication you could power up more than one shot at a time.
EDITED: Its a little late at this point as the answers have went way off the rails but in case it gets more replies my intention was a weapon someone might carry around and could use as one person. not a weapons system or vehicle. Also no robots or things that essentially are their own entities. It should be a weapon used in a weapon like manner. aim and fire. also that quote about sufficiently advance technology looks like magic. if it looks like magic to us instead of technology then its to far afield. I hope this makes it more clear what I was looking for. Honestly I would have like to not use weapons as a basis but there are just to many things when you look at all of sci fi.
I can’t think of a sci-fi weapon that would be cooler than actual existing weapons but the closest thing would be an Ornithopter from Dune. I guess it probably haves guns - I haven’t seen the movies or read the books.
Go see the movies immediately, then immediately go read the books.
Right after I’ve watched Interstellar first.
They seem so impractical, especially on desert planets. But damn they are cool.
They have been designed to “work” like desert insects, but yes, they are pinnacle impractical for anything that flies. Especially if you see the landing crafts that seem to work without rocket engines, IIRC. Why bother with wings when you could just float away. But what a cool design.
I’m fairly certain Holtzman suspensors attract worms. (As do Holtzman shields.)
With the harvesters it doesn’t matter much because the harvesting itself attracts them, but if you want to move around in Arrakis and don’t want to find your vehicle eaten when you come back for it, it’s probably better for it to use some mechanical means of flight, and ornithopters are probably less noisy than propellers, rotors, or jet engines. Also more capable of handling sandstorms.
I just love the sound they make.
yeah I should have specified but I was more thinking personal weapon than weapon systems or vehicles or such. something one person can carry around and use.