for the beginner section of this flowchart, the anime listed here are reasonably short, have a good english dub, and are critically acclaimed or highly rated by most viewers. some popular starters that are extremely long where left out such as one peice, naruto, and dragon ball z.
Are you looking for...
Something epic like Avatar: The Last Air Bender?
Full Metal Alchemist: Brotherhood
Space Western? (Firefly, Guardians of the Galaxy)
anti-hero crime drama with the grim reaper