among all the seven HP series which for you is the best and most captivating?
I voted for the first book cause it's what hooked me to the whole series. But other than that, I could say that all the HP books are equally great.
I would say I most enjoyed the Goblet of Fire. I always like the books that fall solidly in the middle of a series the best. Not sure why. I almost never like the ending as much as my anticipation of the ending:)