What would be a better deal: depositing money at simple interest of 5% for 20 years, or

Question:

What would be a better deal: depositing money at simple interest of 5% for 20 years, or 10% for 10 years?

In both cases amount will be same but in case of second i.e. interest @10% for 10 years amount will become double after 10 years and therefore it is a better deal.