No idea, I think you have two problems here. One problem is the bullies and one problem is your daughter's attitude.
When I went to school, there was a boy who was hated by all the other boys. He still desperately wanted to be friends with them, followed them around, and requested to be put into a group with boys when we had to do things in groups and he had ended up in a group with girls - I didn't know him that well, but I don't think the girls bullied him, nor more than the boys, at least - he was just being sexist.
It was completely irrational, and I have no idea why he behaved that way, but what you write about your daughter reminds me of him. Perhaps some people are like cats (who are infamous for always sitting in the lap of the resident cat-hater while ignoring all those who love cats. Just, for cats, it tends to work. For people, it doesn't.)
Have you asked your daughter why it is this group of girls she wants to be friends with instead of some other group / individual girls?
Perhaps you can convince her to change her behviour patterns in the new school and try to spend more time with girls who are nice to her, or at least not actively mean.