Um, yeah it has to be this one:
I always thought from that moment the manga will be epic, I even considered Zodd a good guy there for some reason. Don't know why but that was a thing that keep me reading over and over again, well the whole incident with Zodd to sum it up.
Hmm,... well, I watched the anime before I even knew there was a manga. I liked the anime, but the ending was weird, so when I realized their was a manga, I read it in the hope I'd learn what the anime's ending was all about. Berserk was the manga that convinced me manga are usually better than animes as far as stories are concerned. I was hooked pretty much right away.
Some of my favorite scenes from the first volume:
I like how the 'hero' of the manga was everything but a hero. In fact, he was the absolute opposite.
Fighting with 200%.
For me was very special scene where Guts saw Griffith for the first time after eclipse. It is hard to imagine what feelings he had...