I've seen your thoughts about video games' storylines and OSTs. Now let's move into animated series.
Anime or not, it doesn't matter as long it's considered as an animated series.
New animes are disappointing for me nowadays. Boring and sh*tty plots and characters, scenes that made me cringe, etc. The Japanese have good styles, but Westerners do better in lores and plots overall IMO.
Aside from all the crappy animes, there are some good ones though. Such as Attack on Titan, Berserk, RWBY (it's American though), Fairy Tail, etc.
After watching ten episodes of Berserk, I fell in love with it. Dark Souls brought me to watch it since people said about how Berserk is one of the inspirations for Dark Souls and that the developers are fans of Berserk and Artorias the Abysswalker was their homage to Guts.
(Oh, yeah. Artorias is my favorite character in Dark Souls series. Probably my favorite from all fantasy games. Artorias is just so cool and badass. He looks great too. Also, I've always been a sucker for cool men and women in armors and helmets)
Berserk is a medieval-styled dark fantasy. It has mature contents though. You can see how some things became inspirations for Dark Souls. Capra Demon's model was seem to be based on Zodd the Immortal. Artorias was their homage to Guts. Throne Watcher's helmet looked like Griffith's helmet. An ultra greatsword (I remember it's the one that also does dark damage, and probably the only UGS that I liked) in DS2 kinda looked like Guts' big ass sword. And the list goes on...
So... Berserk became my number one anime, followed by Attack on Titan, RWBY, and Black Lagoon. Berserk is definitely worth watching despite being old. Amazing characters, doesn't make me complain about some stuff in it, amazing plots, etc. I can't wait for the second one to be launched on July.