I have to say I'm very lucky with my 2 DIL - but as they both live near their parents (1 in Holland and 1 in Scotland!) we don't see them as much. But they are lovely girls and we have chats on the phone. Very importantly, as my sons are great friends, the girls get on well together. I love being able to buy them girlie presents after being surrounded by 4 sons and OH! I call them my favourite Dutch DIL and my favourite Scottish DIL!
My SIL has such problems with her 2 DIL that I feel truly blessed.