8
From my MSDN subscriber account, I see that the Windows 8 Enterprise edition is a smaller sized download than the regular edition (3329 MB vs 3416 MB):
I looked up Wikipedia to double check - the Enterprise edition does contain many more features. How could the smaller ISO size be explained, then?
4The logical conclusion is that it contains less data. – Thomas – 2012-11-04T13:32:52.763