I'll go first. Mine is that I can't stand the Deadpool movies. They are self aware and self referential to an obnoxious degree. It's like being continually reminded that I am in a movie. I swear the success of that movie has directly lead to every blockbuster having to have a joke every 30 seconds
I think a lot of people sees Heaths performances and go this is awesome that makes this an awesome movie, didn't help that he died around the same time.
This then lead to it being this best movie ever meme, where anyone that didn't think so was hevely down voted and sometimes insulted and it managed to remain like that for many many years.
Personally I hold the opinion that while Heath did a incredible performance, had he had a better script and maybe even a none Batman script. It would have been an absolutely marvellous performance. Also that as he did such a good job but the rest of the movie didn't, he's work stod out more as being really good.