The Diversity Visa Lottery will be likely repealed in the near future by the Border Security, Economic Opportunity, and Immigration Modernization Act of 2013 so that won't be an option for very long.
https://www.govtrack.us/congress/bills/113/s744
It only has a 43% chance of passing. It's been up to the house for a year now, it's probably going to be shelved until after 2016.