Personal experience (we should have a RaF tab in the Wiki I would think):

Vet Mage -> 59.9
Vet Priest -> 32.9
Friend Druid -> 60.1

Vet Shammie -> 59.9
Vet Shammie2 -> 32.9
Friend Pally -> 60.1

Friend Druid grants 1 level to Vet Mage (to 60.9), 28 levels to Vet Priest (to 60.9).

Friend Pally grants 1 level to Vet Shammie (to 60.9), 28 levels to Vet Shammie2 (to 60.9).

This worked fine, ending up with:

Mage 60.9
Priest 60.9
Druid 60.1
Shammie 60.9
Shammie2 60.9
Pally 60.1