My favorite Lan moment is his scene with Nynaeve by the fire. She tells him her feelings and he responds by saying he can not be with her because his fight is with the Shadow. He goes on to say "I will hate the man you choose because he is not me, and love him if he makes you smile. No woman deserves the sure knowledge of widow's black as her bride price, you least of all."

He was a really strong but one dimensional character before this scene. You had glimpses of his other facets, but this scene made him human. It also made all the women readers want to "swoon" :)

My favorite Lan and Moiraine moment is when she asks him "does your bond chafe after all these years?" He responds "No" ... "Honor to serve Moiraine Aes Sedai. It has been and will be so, always." Then she says "You humility, Lan Gaidin, has always been more arrogance than most kings could manage with their armies at their backs."

I don't think it is arrogance so much as a quiet confidence. He knows his capacity and capabilities. He is the emulation of the knight in shining armor.