I mostly like thinking of sorting characters from different fandoms into the houses. Some Hogwarts AUs are nice, but they have to work really well to pull it off.

I enjoy sorting characters from other shows/books as well.

I like parodies (for example, that list of episode titles if Harry Potter were to be told in "Friends" episodes), and to add to what's been said already I also enjoy conversations about characters from other fandoms and which houses we think they'd be sorted into.

But I'm not really into the crossovers that involve literally mixing characters from two different fandoms to create a new story. I prefer to keep the actual characters from different fandoms separate in that way.

Some of them are dumb, but some go together surprisingly well.

I like when characters from other fandoms are sorted into the houses, but that's about it.

I'm not really into crossovers.

PJO

not at all, i like canon in harry potter,but is not so many crossover i like anyways :)