**Appel** ranks nine distinct levels in a progressive hierarchy, examining how each stage measures up in terms of challenge, mastery, or achievement. From the foundational Level one through the advanced Level nine, this ranking evaluates the complete spectrum of progression.
Notable positions include Level six, which stands as a mid-to-upper tier benchmark, while Level eight represents near-peak performance. The lower levels (one through three) establish the groundwork, mid-range levels (four through six) test developing skills, and the highest tiers (seven through nine) separate the truly exceptional from the merely competent.
Whether you're tracking game difficulty, skill progression, or achievement milestones, this comprehensive ranking provides clear insight into how each level stacks up against the rest.