Madoka's

Homura in one of the previous timelines

Well the show wasn't gruesome of course it won't be as violent as the ones you mentioned.But I wouldn't say they failed to make an impression if the Mami Head Jokes are anything to go by andin the hands ofwas dramatic.And then there is Rebellion which it sure as hell left an impression. And again Madoka has more going for it than characters death.