Actually this is the crux of the matter;
Comparisons of the various types of helicopter, while interesting, aren't really helpful...
The problem is that MRG has failed causing two hull losses and the loss of the lives of all on board. After two incidents and major technical investigations we do not yet have a fully developed understanding of the failure mode, a package of modifications to prevent its recurrence, or a workable system to detect the failure once initiated.
So there is one type that has done this. And it's manufacturers response has been to squirm and dissemble.
How does it compare? Well I have a technical interest because this newer 'safer' generation of helicopters seems to be anything but that.
One seems to have issues, some possible caused by marketing hype and the rest by measures which need to be sorted out (4.5 hrs warning and no actions????) and one has what appears to be a fundamental problem which it's manufacturers just want to 'go away'.