Debate, yes..as long as mis-information is not allowed to run rabid..Controversy, I would say NO..because everyone has a conviction for their beliefs and their are no absolute terms, just opinions.

This said, their are many numbers of loudspeakers (From MY POV) easily capable of better musical performace than Maggies. Diapole radiators themselves emit sound in ways that many acoustic instruments do not or can not and this alone is a form of artificial coloration. Maggies do have a "quality" that many appreciate. This said, whatever floats your boat is what you will enjoy. I on the otherhand have had the luxury of constructing many different types of loudspeakers over the years and when a blank piece of paper lends itself to another project, diapole radiators were surpassed well over 3 decades on my drawing board and I do not plan to revisit that type design. I have listened to Modern Magnepans as well but the diapole design is typically flawed for accurate sound reproduction when it comes to inverse square law, linear dissapation and freedom from cancellation.
My best advice is for you to listen to many different type designs and judge for yourself. Since this is where you are at now...in the feeling that the maggies are for you, it might be wise to stop there if you feel this is the best for your hearing and enjoyment. I on the otherhand have grown above them.

Perhaps it is a personal thing and I have no right to infringe on your belief system..I simply state that in my experience, their are other deigns that please me more. It is for you to decide, this is something I cannot do for you. Too many varables.

Right now, these loudspeakers are the ones I like.

www.4sptech.com

I am quite certain your mileage will vary.