The only comment I'd add is that Orwell wasn't writing, primarily, about Britain and America. He was writing about the Soviet Union and Nazi Germany. Thanks in part to his efforts, Britain and America never became Oceania. Huxley, on the other hand, was definitely writing about Britain and America.
If you disagree, you must concede that Orwell was a better prophet than Huxley. Orwell's warnings staved off the Hell that he feared.
We all live in Aldous Huxley's Hell.