Anna's death is great, but I would argue the chapter where she finally gives into Vronsky at Princess Betsy's is greater. There's so much tension in the will they won't they, and everyone knows that the moment she commits to him theres no turning back. Her death scene is amazing as well, but I felt pretty miserable about Anna by that point. She was a completely ruined woman which made it difficult reading through her sections, compared to the person she once was. Her suicide feels inevitable and ties up nicely with when she met Vronsky, but it was just so depressing.