You could, depending on your particular needs. Both are cloud computing solutions with various benefits. S3 users praise the service for its scalability, durability, pay-as-you-go model, as well as its comptibilty with other AWS services. It does, however, use the object storage principle, i.e. a flat environment. On the other hand, users upload Google Drive files into a hierarchical file storage system. They appreciate its user-friendliness and smaller learning curve, easy public sharing, etc.