Well I happen to think they were great due to good art an few other reasons I don't really care to elaborate on.

I normally watch anime that have good gory art in it with a decent story Like Ninascroll, Basilisk, Blood the Last Vampire movie was cool, Street Fighter II, Berserk Anime and the movies are cool, Spriggan, Animatrix, Afro Samurai, Guyver, Akira, Ghost in The Shell, Black Magic M-66, I didn't Like CG animation with Appleseed, but Appleseed Alpha was cool, Samurai Gun, and a few other movies I don't own yet also I like Kite, Deadmans Wonderland was kinda cool, Guin Saga, Fist of the North Star and the New Fist of The North Star and other cool shows I can't remember.

But it' not surprising to see Attack On Titan being on the list, like 15 meter human class titans in fisticuffs with limbs breaking due to over exertion and jaws lost and hands smashed, with a few humans with sharp blades that dull rather quickly so they have those packs and run out and stuff, and what Levi did with the female Titan was dope retrieving the goods.

Also have you read Shaman Warrior, NOT shaman king.