Here my chose:
Alina Popa started to compete bodybulding many years before others candidates so have reached more muscular maturity
The difference between Alina Popa,Sarah Hayes and Julie Bourassa are mainly on the legs. Alina Popa have legs more development than Sarah and Julie.
However IMO I bet on Hayley McNeff, Katka, Elena Oana Hpreca and of course Monica Mollica for the future. One of this four bodybuilders have excellent potential and should be the new Goddess of the nexts years