Ok first off, haven't played far into six and I just can not get my hands on seven. Had this problem with three when I was younger.
My favorite would be three. It's simple. Easy to pick up. Started the most well known saga in dw/dq. Has the coolest villian, Zoma.
III, Epic story
IV, Loved the chapter idea. Would be one if it wasn't for the AI system. I want to control my people.
V, Great idea getting monsters to join. Great challenging last battle.
II. I probably love this game more then most people. It's hard. It has tons of history with my being mad at it . I never cried out so lo