I’d love to be able to see my own top rated episodes per show, as well as top rated episodes per show across all Trakt Users, I’m really interested and keen to see what others think in that that regard, but I’m having a hard time discovering the right filters…or maybe there isn’t that functionality? Any help would be appreciated 
You can filter this page…
I do not know how it is sorted to start off with.
You can view your own ratings here: trakt.tv/users/kate-trakt/ratings where “kate-trakt” is replaced with your own username. There are quite a few view options/filters: you can view by date, by episode, by show, by genre, hide completed shows, toggle divider…
The same is true for any public user, you can insert their username and see their ratings.
To be able to see others’ ratings by episode or show and not by user would be a feature request. I’d love to hear more about how you’d use it.
Also check out Sean’s long post on his ideal recommendation process as well as the topic he posted in.