Amazon is the safest program out there. Better than paypal, netspend, serve.
Bluebird will be the best once the growing pains are worked out and the vanillas get distributed across mainstream companies. Give it 3 months and they will be everywhere.

Everyone in the mileage game should have at least 1 amazon and bluebird account for each member of the family and move the maximum $1K on amazon each month and $2.5K+ per month through BB.