That will depend on you current goal.
I recommend Genius Code if you want to develop creative thinking skills. Enhancing the mind body connection, intuition and generating ideas or solutions for you're life. It is also a good course to add to photoreading in that the skills learnt provides additional ways to 'activate' as well as discovering spontaneous activiation through understanding the messages of your inner mind.
Natural Brilliance is for working towards specific goals. Learning the model to help you to work towards the outcome you desire.
The results you experience from Genius Code in the realms of self help may seem to be more abstract whereas Natural Brilliance they tend to be more tangible and measurable.
Alex