Sensei!
After hearing Nathan Sensei's request, Sakumo carefully thinks before responding.
1. I want to learn Raiton because it is the most useful of the 5 basic natures in my opinion. It can boost or be boosted by water. Enhance reflex and cutting power. In addition to that, it is required for a Magnetic Bio. Last but not least, it is the most visually appealing.
2. Raiton is weak to fuuton because wind is an insulator. Its also weak against Dark release because dark release can absorb raw energy which is what raiton basically is.
3. Raiton is strong against doton because lightning easily travels through and destroys earth like materials. Due to raiton's cutting power, it has the advantage when facing Ice, wood, and crystal. Suiton can conduct raiton and boost each other. Lava for some reason is weak against Raiton. I guess it can cut through rubber, but i don't see how it has any other advantage against the other variants. If you could explain that to me, that would be great.
4. Sasuke, Kakashi, Darui, Ay, and Killer Bee are all raiton users. Sasuke mainly uses chidori variants. Kakashi uses a wider array of raiton like Rakiri, Raiton Clones, Rakiri Transmission and the like. Darui combines it with water to create Storm jutsus and well as using water as a conductive medium for raiton. Ay uses it to increase his speed and reflexes. Killer Bee uses it to increase the cutting and piercing power of his swords...and pencil.
5. Storm release contains raiton as well as suiton. The rinnegan grants all 5 natures which includes raiton.