You cannot compare a fictional weapons, with a real world device. Given that Is is Fiction a lightsabers components, and building material are likely to be unlike anything we currently possess.
Obviously It cannot be entirely weightless, but taking into account that The Force would amplify the users strength, and stamina the weight issue Is quickly corrected.
The people who would use Lightsabers will have spent their entire lives using It. The idea that It would feel awkward due to weight, or which way the hilt was hanging Isn't valid, as It Is likely the user has chosen these things themselves, and are accustomed to that preference.
I don't understand where all this Is coming from. You've clearly watched the movies, and every single person (except Han) never have any problems using their lightsaber for defense, or attack even with these "awkward" and "impractical" ways to carry them.
While It may seem impractical, and seems awkward to you, that certainly doesn't mean whoever Is using It feels the same way.
True, I am just assuming that the lightsaber would be made from comparable materials in real life. I'm not sure what the lore says but if George Lucas said "lightsabers are made of a mystical metal that weighs only 1 pound," I couldn't argue with that. However, it does seem like they have a reasonable weight to them, given the sound they make when falling to the ground.
I never said that lightsabers are too heavy, making them difficult to use. My whole post was about the transition in hand placement being awkward. To use your fiction argument against you, the way lightsabers are designed and carried comes simply from the idea of someone involved in making Star Wars (who probably gave this much less thought that I have), not from years of people actually wielding them. I'm just projecting that if the Star Wars universe were anything like the real universe, this would be awkward for an untrained person to operate. Sure, if someone trained for years with a poorly designed piece of equipment, he/she could become proficient at using it. But that doesn't change the fact that it is poorly designed.
Well of course the movies would not want to show their heroes fumbling around with their lightsabers. I tried observing how Jedi draw their lightsabers in the movies and while this was often difficult due to cuts in the editing, you can see that I am right that they first grab their lightsabers at the bottom before shifting their hands to the top. They do seem to do this quickly and effortlessly, but I am merely expressing my opinion that eliminating that shift in hand position would be more efficient. I don't see why I'm getting so much hate here; I was merely expressing my opinion on something that bothered me and was curious to see if anyone else felt similarly. Apparently I'm the only one.