Ok, one of the Iconic moments that stays in my mind is in KQ8. When you first encounter Azriel in the Dimension of Death... There is this conversation between them about Connor's lack of noble upbringing, and Connor goes into a poetic rebuttle that true nobility is more a matter of deeds and virtue rather than birth! That heros can come from all walks of life, that a pauper can save a king. Azriel is set back, and surprised by the wisdom Connor exibits, and knows he is destined to greater things. It's a poetic moment, sets up the symbolism for much of the game, and comes full circle later as Connor develops into a knight exemplar. I really love how the game questions the nature of a hero, which in itself is commentary on the entire KQ series as a whole!
Another of my favorite iconic moments in the game, is the conversation between the Unicorn/Beast and Connor about saving the royal family, and Connor setting off to try to check up on them. After finding the secret passage into the castle, he discovers King Graham, and even uses the magic mirror. It's a nice nod back to the use of the magic mirror in the earlier games. Some of my favorite comments by Connor in the game, involve his 'vowing to save the family', including his King and Queen.