Europe or Asia?

I need your help in deciding where to travel this summer.

Blake's aunt works for Continental airline, and she put him on her list for service just for the year. In other words, Blake is practically the status of her "spouse" and so he can fly anywhere for a VERY affordable price (taxes are the main cost.) In addition, he gets to bring one travel partner along-- ME! So we've been talking and thinking. People tell us we're crazy if we don't go somewhere this summer and take advantage of cheap travel. That's something that doesn't come everyday.

So here are some options:

1. Sweden (we could stay with Peter and Gunilla and meet their new baby)
2. Greece
   
3. Switzerland (spend some time at the Swiss L'Abri, where they house students and enjoy fellowship)
4. Japan (something completely different? I found this hostel there that reminded me of the Seinfield episode where Cramer puts his Asian visitors in drawers to sleep. I miss hostels... you can meet some really awesome people there.)
   

Any other ideas? Which country do you think we should visit?