who look more stunning? Africa vrs America lol. ( Genevieve Nnaji vs Rihanna)

Tell me please who do you think wear it best? considering the colour, look, beauty... lol. Genevieve wore hers to the AMVCAs last night and Rihanna hers, a Zac Posen dress, to her Diamond Ball event in December 2014. Who rocked it? i think it is...