California Vs Out of State (really, but why?)

[Osazee Edebiri]

I think the constant discussion of California vs anywhere else is intriguing. So I pose a question. Hypothetical, if a person had a  2 million dollars to invest, they purchased property with 1 million in California and 1 million in any other state, which would perform better after 15 years and why? 

This assumes anything and everything will happen, which is the real life case anyway.  I am not automatically assuming California will perform better just because I live here in the Bay Area. I think someone may have interesting incite to why another state could out perform California property in the next 15 years.