2 ways pretty much always sound better than 3 or 4 ways.
Why would you want to split the high frequencies between 3 different drivers?? That makes no sense.
To get the best sound you ideally want as few drivers as possible. A 6.5" midrange can play 40-4500 Hz easily and well. A typical 2" tweeter can play 2000-20,000 Hz easily and well. And by using only 2 drivers you drastically lessen the chance of any cancellation or phasing issues. Splitting the high end frequencies between 3 seperate drivers throws all that out the window.
And that beefy 1.5" midrange is a tweeter. A midrange speaker that wont play below 1000 Hz is NOT a midrange speaker and Ive never seen a 1.5" driver than can without it sounding like a kazoo.
Its a marketing gimick pure and simple.
Like I said before, Ill give you $1000 for any SQ competition car, any reference level or any home audio system or any recording studio monitor system using "super tweeters". You aint gonna find any and there is a reason for it.