An actionable rating system

In my quest for a rating system which is less arbitrary than the usual 4- or 5-star system, my friends and I first came up with the Speed rating system.   But that proved even more problematic.   So, back to the drawing board, I thought that a system based on the actions that I actually recommend would be more grounded.   Even if there is a skew in this system, I can at least justify it. Here's how it works with movies: 5 stars means: I recommend owning this movie as part of your permanent library 4 stars means: I recommend seeing this movie in the theater. (Note that okay action movies are more likely to get 4 stars than good dramas or comedies.) 3 stars means: I recommend renting this movie or borrowing it from a friend. 2 stars means: I recommend watching this movie if it happens to be on TV. 1 star means: I do not recommend watching this movie under any circumstance.