In our family, the paternal granny has actively pushed us away, she has been unkind about us to our grandchildren, it’s been very, very upsetting. In my view, it shouldn’t be a competition but she is determined to be the ‘best nanny’ and delights in her (our!) grandchildren saying this at shared family occasions.
Nannan2 says ‘ I’m the paternal gran to my eldest sons kids obviously, but I'm his kids favourite nan, I'm also the favourite gran of 2 of my DD's kids- You don't get to be their favourite one for nothing!’.
But in my experience, I’m very much afraid that manipulation and cunning can be very helpful in creating a ‘favourite one’ too.
I have been saddened by the games playing of the ‘other’ granny, and it may be that she doesn’t realise what she’s doing. And if she does realise, I hope she will tire of her games. ?