Hellsing is my favorite manga and anime. The "so-over-the-top-you-can't-see-where-the-ceiling-was" violence walks the thin edge between badass, horrifying and hilariously ridiculous so well it's hard not to like.
And the whole "What's more evil than vampires? Nazis! What's more evil than Nazis? NAZI VAMPIRES! Owww yeah." concept is inherently charming. Plus even if it is (really) a mishmash of other interpretations, a genuinely unique and evil Dracula is refreshing.
But the 13 episode TV show is shit. Total shit. (Save for the voice acting. Which manages to overcome the misguided characterization somehow to still be good.)
Read the manga, watch the OVAs (Hellsing Ultimate) which more closely follow the manga. And that's all you need. I kinda hate that they crammed in more action in the OVAs though.
The 10 manga volumes are cut right down the middle for story and over the top action respectively. Starting with OVA 3 (1 and 2 are pretty flawless and lossless translations from page to screen) they missed that big time. So the characters come off as less interesting, and when the violence finally explodes it has less of an impact.















