According to the information you provided, I can recommend some light novels to you. However, the question of which is better, Kingdom of Light or sl light novels, sounds like comparing two different websites or platforms. I can't answer this question. But I believe you can make your own choice after trying these novels. The following are the fairy's novel recommendations: "Rebirth of Nairo","The First King of the Japanese Server","The Little Reaper Came to My Home","The Strategy System of the Other World","The Kingdom of Silver Dragon","The Highest Mage","Alice of the Kingdom of Steam", etc. I hope you like my recommendations. Muah ~
Light fiction referred to light novels that used science fiction or fantasy as the theme and a fictional world as the background.
The Kingdom of Light referred to a special genre of Japanese light novels, also known as the " King of Japanese Light Fictions." It was usually based on Japanese anime culture to build a unique, dynamic and creative virtual world, which contained many popular Japanese anime cultural elements such as magic, adventure, love and so on.
Both the light novels and the Kingdom of Light were important genre in Japanese light novels. They were both loved and sought after by readers. Among them, the light novels usually had a broader world view and more in-depth sci-fi or fantasy settings with more technological elements, as well as more thrilling plots and character development. On the other hand, the Kingdom of Light placed more emphasis on the creation of characters and storylines, the expression of emotions and humanity, and the integration of Japanese anime culture.
Well, 'light vs shadow light novel' could center around the concept of duality. The light might symbolize good, hope, or positive forces, while the shadow could stand for evil, mystery, or negative aspects. It may tell a story of a hero from the side of light facing challenges from the shadowy elements in the story's universe, with lots of plot twists and character development.
I'm not entirely sure about its global popularity, but within the niche of light novel enthusiasts, it may have a certain following. If it has been translated into multiple languages and has a lot of fan - made content around it like fan art or fanfiction, that could be an indication of its popularity.
I'm not sure specifically as there could be many 'shadow light novels'. It might be about a world filled with shadows, perhaps with characters who have to navigate through a shadowy realm, or it could involve some mystery related to shadows.
The Eminence in Shadow light novel is finished. It provided a conclusive ending for the characters and their adventures, leaving fans with a complete narrative.