Well, the anime and the light novel of 'A Certain Magical Index' have some differences. The light novel can offer a more comprehensive view of the world - building. It has more room to develop the various factions, such as the Magic Side and the Science Side. In the anime, some plotlines might be simplified for the sake of time. But the anime does a great job in character design. The unique appearance of characters like Accelerator is very well - presented in the anime. Also, the voice acting in the anime adds another layer of charm to the characters that the light novel lacks.
It depends on your preferences. The anime offers a visual and auditory experience, but the light novel might have more detailed descriptions and inner thoughts of the characters.
For me, the light novel is better. It has so much more detail. You can really get into the minds of the characters through their internal monologues which are sometimes not fully captured in the anime. The light novel also has the advantage of not being restricted by time limits, so it can explore the story's concepts and plotlines more thoroughly. But the anime does have the perk of bringing the story to life in a different way with its great visuals and action scenes.
The light novel and anime have some similarities and differences. The anime usually visualizes the key events and characters from the novel but might simplify or omit some details.
It follows to a considerable extent. The anime tries to remain true to the main plot and characters of the light novel, but there are some inevitable adaptations and changes.
The main difference is the amount of content. The light novel contains a vast amount of information, including backstories, character development details, and in - depth explanations of the magic and science systems. The anime has to cut some of these details to fit into a certain number of episodes. For instance, in the light novel, there are long passages about the history of Academy City that are not fully explored in the anime.
It follows pretty closely. The anime mostly adheres to the main plot and character developments from the light novel, with just a few minor changes for the sake of adaptation.
Well, this light novel mainly focuses on the adventures of the main character. It has elements of action and fantasy. There are battles between different factions of espers and those involved with magic. It also delves into the moral and ethical questions that arise in such a world full of extraordinary powers.