Personally I like the Mexico idea. I recently invested a chunk of my Capital into Mexico for the long-term. 

So with that being said, I would probably do the exact opposite because I'm always wrong 

Anyhow, good luck with your decision. You definitely have a hard decision to make because you have two really good choices. Good luck! 

 My family is in Mexico. I didn't really have a choice coming to the US. Long story short it was an ultimatum. But now I have to opportunity to go back home. Perhaps a slow burn phasing out my American lifestyle. I'll have to reassimilate and unlearn some things. 
Hope your venture is fruitful. Godspeed.