Whats so great about the M&P?

[mattpittinger]

I am an M&P owner and official Kool-Aid drinker. I get asked all the time why I feel that the M&P is superior to the Glock. My usual response is not that it is not better, but rather that it has some improvements that I felt were good for the Glock "platform". For example, the stainless slide, REAL sights, interchangeable back strap, and ergonomics that fit most any hand. I know that we have a lot of M&P supporters on this site, so my question to you is "What is so great about the M&P?". Why have you picked this as your gun? How do you respond to the question "Why is the M&P better than a Glock?