I don't think there's a good way to compare the amounts of these things. I think the best you could do is ask how many bits would be flipped/added/removed had the thing not existed/happened.

Porn might involve large media files which gives it an up-front advantage re: "more", but it doesn't create shockwaves the way censorship does. Remove a porn video and the world stays largely unchanged. Undo an act of censorship and, well, maybe the world stays unchanged, or maybe everything is different.