If there's anything worse than desperate fanboy posturing, its desperate fanboy posturing over non-existent products. Right now nobody outside of their respective labs knows what the possible new Apple and Microsoft tablet devices will be like. I for one will reserve my opinion until I've actually seen something.
Oh and for the record on your 3rd point above, I've had as many infections and blue screens on my windows machines here at home over the years as I've had infections and kernal panics on my macs here at home over the year; which is to say no infections and the only hard crashes I've seen from either OS were down to hardware issues.