The world will NOT end in 2012! What it says in the Bible has NOTHING to do with this. In the Bible, it talks about Christ's return (Don't know what I'm talking about? Read the book of Revelation in the Bible.). Christ will NOT "wipe out" 1/6 of the Earth, he will come to redeem Christians (people who have confessed their sins, and have been saved by Christ).
Anyway, to answer your question, I think it would be HORRIBLE to be one of the last humans on Earth. Why? Because the last humans on Earth have to go through seven years of satan RUINING our lives (Still don't know what I'm talking about? Keep on reading the book of Revelation!). Good Bye!!!!