I would
love to have a feature like this! It'd be really interesting to see which traits are truly favored by the community and to potentially motivate people to breed what they love, not just the flavor of the month. Sometimes the traits we love become nearly lost as the years go by with the introduction of newer, and more recessive traits.
Even a little overview of the top 10 most popular and least popular traits for each category would be awesome to see if this suggestion isn't implemented to its fullest (which it should be!)