i highly prefer the AZERTY keyboards because i can type all the symbols i need in a fast and efficient and i can type all french letters without having to memorize the lengthy alt combinations
Your argument does not stand if you're working in Mac OSX :)
I can write ligatures, diacritic points as well as acute, grave and circumflex accents using an intuitive alt combination. For example, if I want to enter "é", I press alt+e (it triggers an accent) then i press "e" again.
And voilà!