Here each franchise that has at least 3 films and in which I have seen at least 3 films is listed.
How it's calculated:
Films I've seen (N) and the total rating of those (R) and do the following:
( N / R ) * 10.
Only feature-length films are included.
Each franchise is represented by the earliest released film that I've seen.
You can read the notes for each to see the franchise, the number of the films I've seen, the percentage and a list of the films I've seen.