As a Flemish Belgian ( I am not Flaming about it, wink wink) , I use QWERTY and Mac OS X English International. Always have (since OS X came out) and always will , and this , among others, due to the keyboard shortcuts that correspond to the info found in books and on internet. There's vastly more info in English than in Dutch. The funny thing is, about 50% of Mac owners I know, also have the English version, but alas, the suffer from that French-influenced disease called AZERTY.
(Long time ago, some asshat introduced AZERTY to ALL Belgians because... feck those Flemish people)