I don't think comparing scores achieved behind the boats would be all that meaningful. Too hard to sort it out by who pulls the most events, and the difference between sites. For example, say one brand was pulling euro events with exceptionally high scores, would that be because of the boat or the driving? Or something else.
If there was a particular boat with a problem at a particular line length, I suppose that might make a difference. At this point, I think all of the big three are good enough and the differences so minor that the point would be largely moot.
I once heard someone talking about how many records were set behind a particular brand. Isn't that more a function of how many team skiers you have and how many events you pull? It certainly is at the pro level.
I would be more interested in data about how long interiors last and what warranty claims are made etc...