there's a bloke at work who has just bought the Husqvarna version. It's prettier and a better bike.
The Nuda 900 is so far from a Husky version of the F650/700/800 to make any direct comparison meaningless. Everything from the bore, stroke, compression, crank, etc... Has been changed. And the Nuda is a large supermoto or standard, whereas the BMW is an adventure bike, especially the 800 version. The F800R, which was dropped, would be a closer march, but before selling off Husky BMW gave the Nuda the warmed over motor knowing it was going to be a more niche bike.