But many people wont have any 1x1 ranking and wht then?
Simple. They get sorted by level below the people ranked. Or alphabetically.
So if sb is no1 in 2x2 ladder and has a rather poor score in 1x1, the he should be listed at the very end?
The 2v2 ladder does not show individual merit, so why should it have an influence on an individual's rank in a clan? As for the other ladders, the real-time ladder and seasonal ladders have fewer players ranked on any given day, compared to the 1v1 ladder, so if a ladder is to be chosen, the 1v1 ladder is the most inclusive.