Best private schools in Melbourne for Girls?

I am looking to enrol my daughter in a private school somewhere in Melbourne's Eastern suburbs. I have heard so many conflicting stories on various schools (this schools has this facility, this school doesn't etc) and the whole subject is so confusing. Can anybody provide their thoughts on the various schools. I had been looking at Genezzano and MLC in Kew, Sienna in Camberwell. (based on family/friends recommendations).