It's where they take place that is important. 1984 isn't happening in some known communist country. Brave New World is happening in Europe where America is the "savage land."
I'm not sure if where they take place is as important as what they predict. I mean, the important part of verne's "from the earth to the moon" is that he predicted putting human beings into space even though he also predicted a giant ass canon doing the job.
I'm going to agree with Gol and say:
They both have extremely valid points. I'm just saying you can't dismiss one...
However, Orwell gets the edge in my mind simply because of personal preference, I think it is slightly better written.
Admittedly, I'm slightly biased towards liking longer novels, so that might be it too.
I'm fearful, I'm fearful, I'm fearful of flying, and flying is fearful of me.