I just finished the 2001 hellsing. it has it's pros. it feels much more like an old RE game in the first half than ultimate did, and the vibes are immaculate.
However, soybrethren, the second half is ASS storywise, because it didn't follow the manga. Also thrembillions of cases of japshits having no idea how firearms, militaries, or squad tactics work.
i give it a 7
afterthought the animation was meh, the fights were much better in ultimate, also every character except Integra was gemmier in Ultimate