I am NOT a fan of Crow/Leaf. I used to be back in the day, but it was a teenage fling that ended badly for everyone and Crowfeather overall is a gross character that I despise. I also really dislike how Fire/Spotted was portrayed for the aforementioned reasons. And I dislike Ash/Squirrel because Ashfur is also disgusting fedoraboy. Come to think of it, I don't like Ashfur or Crowfeather with anyone. Oh, and Graystripe's parents were confirmed to be siblings Patchpelt and Willowpelt which…nah. No.
There are QUITE a few crack ships that I don't like – Fire/Scourge, Fire/Ash, Holly/Ash, any incest , etc.