A possible concise summary is:
The speaker compares the two versions of the anime series Hellsing, which is about a secret organization that fights vampires and other supernatural threats. The speaker analyzes the characters, the story, the art, the music, and the villains of both versions, and gives their opinion on which one is better. The speaker concludes that both versions have their pros and cons, and recommends watching both of them. The speaker also provides some information on where to watch the series online, and promotes their website and other channels.
Here are the key facts extracted from the text:
1. The text is a transcript of a video comparing the anime series Hellsing and Hellsing Ultimate.
2. The video covers the history, characters, story, art, music and villains of both series.
3. The video concludes that neither series is better than the other, and that they are both great in their own way.
4. The video recommends watching both series for an unforgettable experience.
5. The video is made by Anime America, a channel that reviews anime and pop culture.