Overall, the show has some deviations from the comics. Some characters' fates are changed, and story arcs are tweaked for the TV format. But it still maintains the core themes and atmosphere of the comics.
Negan is indeed alive. The comic storyline has continued to develop his character and his interactions with other survivors have been a significant part of the plot.
Yes, it can be. It can serve as an introduction to Negan's character, which is a significant part of the 'Walking Dead' story. Even new fans can quickly get into the story and understand his role.
The comic of The Walking Dead was introduced earlier. It began years before the TV show. The comic laid the foundation and storyline that the TV show later adapted and expanded upon.
Well, Negan's defeat in the comic was a result of multiple factors. The main characters came up with a clever plan, and they also received unexpected help at crucial moments. Plus, the group's determination and teamwork played a big role.