If you're used to a Glock the M&P will feel kind of weird when you point it... The M&P is a little more traditional in that sense.
I've found that both guns are extremely ergonomic and designed around a very utilitarian philosophy. It's not a matter of which gun is more ergonomic it's a matter of which gun's ergonomics you prefer. Fortunately they're both outstanding weapons and knowing that they will both preform extremely well you can make an educated decision by just holding and dry-firing a few times in the store.
I've found that both guns are extremely ergonomic and designed around a very utilitarian philosophy. It's not a matter of which gun is more ergonomic it's a matter of which gun's ergonomics you prefer. Fortunately they're both outstanding weapons and knowing that they will both preform extremely well you can make an educated decision by just holding and dry-firing a few times in the store.