Officially, we recommend Windows 7 64 bit over Windows 8.
Ack ack is quite right. We get far more complaints and problems reported from Windows 8 users than Windows 7 users. Given Windows 7 occupies a much higher percentage of the systems running Aces High, it is a pretty safe bet to conclude Windows 8 is more problematic than Windows 7 is, at this point in time.
It's not bashing. It is a simple fact.