"Speaking of my old friend and biographer, I would take this opportunity to remark that if I burden myself with a companion in my various little inquiries it is not done out of sentiment or caprice, but it is that Watson has some remarkable characteristics of his own to which in his modesty he has given small attention amid his exaggerated estimates of my own performances. A confederate who foresees your conclusions and course of action is always dangerous, but one to whom each development comes as a perpetual surprise, and to whom the future is always a closed book, is indeed an ideal helpmate." - The Adventure of the Blanched Soldier
BOOM! That introductory part of the story (the introductions are always the best parts, IMO) will never cease to make me laugh out loud. Holmes in a nutshell.
I just plain love them both. What glorious characters. I went to a Baker Street group meeting once in White Plains where they had a canon quiz. The members were AMAZING at being able to quote chapter and verse. LOVED IT! And such exceptionally NICE people!