Both animes have alot of violence as well as the almost ludicrously skilled main charachter, but not so skilled that the fights are completely one-sided and short lived. There is a lot of sword play in both animes as well. They also have a fairly realistic setting in or around the Edo period. So if you like swordsmanship and violence in ancient Japan then you will surely like both of these animes. You may like the ninja scroll tv episodes as well but I will only strongly recommend the movie since the tv show is much more cartoony(ie. monsters and half men half beasts) than Shigurui.