The hasselblad AFs, the H series if I'm not mistaken, was advertised as having very fast AF.
I never used any AF nikons, but my view on the AF of the older F5 and F100 compared to F6, is it really that superior? If you go 35mm it'll be better to invest in lenses I say and for wireless flash there's many way to get around it from the cheap Chinese transmitters to the more sophisticated pocket wizards.