Which series do you like better and why? Well to me hellsing the orginal well always be the best for me but the Ultimate is really doing well. I love the new style of drawing and everything to it but doesn't have the same feeling to me like the old one.
I only watched a bit of Hellsing (the one with 13 eps) but from what I've seen I prefer Hellsing Ultimate. The animation has cool style and the comedy is funny too
OVA is far better. It has split it up into larger chunks making it a little more dramatic and tense but I don't like the way they characterised Seras in this one. Regardless, the story, gore and animation is much improved ^_^