It's probably no help at all but here in NZ
recent figures show that Hughes/Schweizer
300 accidents and occurrences outnumber similar for the R22 by around 3 - 1 (greater than that of late).
I personally think this means very little statisitically and does NOT show that there is any fault with a particular type. It just shows which aircraft is most commonly used for training in NZ and sadly the figures follow, as they follow other types the world over.