Hi EmCee,
All the Saber Forge hilts will work fantastic. When it comes to how you want your film to look, it really depends on a couple decisions you will need to make before you begin filming.
Set and Lighting:
Do you know if you will be filming indoors or outside, and the amount of sunlight(natural) vs. artificial (electric) lighting your set will have?
Rotoscoping:
Are you familiar with rotoscoping in an editing tool such as HitFilm Pro or Adobe After Effects? Will you have access to these tools in the post production/editing phase of the project?
Camera Settings for Frame Rate and Exposure:
Will you be using a camera that has adjustable exposure and frame rate? Most Hollywood production films use a frame rate of 23.976 frames per second, even with the 1080 or 4K settings. This provides a soft motion blur that gives a very cinematic feel. If you dial up your exposure, your camera will capture more light and that will affect the way any light source being filmed looks in the final video.
Many of the Lightsaber Choreography fan films use Rotoscoping to essentially add a layer on top of the original footage and "draw" a glowing blade over the original footage. This can produce movie quality effects when glow settings are applied/created to the "blade" layer. These two layers must be rendered out together to make a composite.
Rotoscoping has it's pros and cons. To pull it off you might need to go frame by frame adjusting the start points and end points of your blade. Keep in mind you will need to do it twice, one layer for each saber in the scene. It is very time consuming. The draw back is that you will not get REAL lighting on your actors and set/scene that would have been cast off the blade. You'll have to artificially add tints to the scene where the light from the blade will cast color on the scene. On the plus side, you can get a movie quality saber core and glow immediately around the blade.
If you are shooting in late afternoon, evening, or indoors, you CAN do this with out Rotoscoping, by using any of the hilts from Saber Forge. To get a white core AND a colored glow, just adjust the exposure on your camera in tiny increments until you see the result you are looking for in the viewfinder. It doesn't take much, even with a 6W LED set up. If you adjust your frame rate on your camera to 24fps, you will also get very smooth motion blur as the blades move and spin. If you chose a higher frame rate, like 60fps, the footage will look almost TOO crisp and HD like, giving it an unreal effect, and the saber blades will have this skipping motion blur and partial motion blur because the shutter is not capturing as much blur. Also with 60fps, you have more than 2x the number of frames you will need to edit any special effects into.
To get the BEST of both worlds, you would want to do both. In Star Wars Episode 7, the production crew combined LED sabers with Rotoscoping. They filmed the scenes with LED blades to cast REAL colored light from the blades on the actors and sets. To fine tune the visual effect, they then did some rotoscoping work to bring the blades to life (such as the unstable turbulence on Kylo Ren's blade)
To add effects like a flash on clash and sparks, it can be as simple as adding very minimal "Lens Flare" effect, tracked to the points of impact. To get more robust clashes, you would need to add in the alpha from welding sparks or other spark effects. Most video editing applications have some type of lens flare feature that you can animate.
So to answer your question, any of the Saber Forge hilts you are interested in will work out awesome on film. The bigger decisions come when you decide how much time you want to spend editing and what software you have access to to make special effects.
If you have any questions on how to do editing, just let us know and we can point you towards some really useful tutorials that are available on the web. Hope this helps.