I think you mean Hayes, maker of mountain bike hydraulic and mechanical brakes, which is what they're rumored to be. A friend that has a friend that tests for BMW says they're in house brakes, so I'm not sure who to believe at this point. He also says they're outstanding, so the jury is still out IMHO.
Another thing to consider is that the BMW is likely Euro5 emissions ready, which means the horsepower rating is probably very conservative, fairly normal for them. There is probably a good amount of power left on the table that a pipe and tune will uncork. We'll see.
The brakes on my 16 RR are fantastic. Great bite, feedback and never any fade for me. Whether it's the Brembos, master cylinder, ABS etc., they feel worlds above the R1M brakes, which may not suck, but compared to the RR they do. I'm really surprised that Yamaha hasn't done something about them, and disappointed that reviewers leave this out.
I haven't ridden the Aprilia, old or new, but the feedback is usually the same. Great chassis, always high marks for mid-corner feel and consistent results. I think the factory 1100 could be a spoiler if the price is right, and is likely just a precursor to maintain their market share until a new V4 is introduced.
I honestly haven't fully ridden the V4S yet, as I'm still breaking it in.
Always a good thing when there is plenty of competition.
San