My phone is primarily a phone, anything else it does is extra (but some features are useful, mostly maps). I want one that is comfortable to hold when talking on it and fits in my pocket. Any screen size >5" is usually too big for my taste
I always liked my Moto G3, and the Pixel 2 is pretty much the same size,but it is a few mm narrower.
So the Pixel 2 is just right for me, and it is quicker, more secure, runs Android O, and has a nicer screen.