I'm a hardcore B&M fanboy, but I agree that they do have some coasters that can be considered as boring. Sheikra minus the first drop and the immelman, is not the most exciting coaster. I wasn't fond of Vortex at Carowinds either, but you're standing on that one, so it's always got that going for it.
What impresses me about B&M is their ability to design a coaster with low impact and blend it into the existing architecture.
Hollywood Dream at USJ, for example.
They're probably the best fit for this project, if it is indeed going to be a coaster. JP isn't exactly the easiest spot to plop a coaster down, but if anyone could do it, it'd be them.