MOST decent look iphone I have used is Iphone 6s.
having screen size of 4.7 inches makes this phone more attractive for users along with that finger print sensor of this phone proves to be the best among all others mobile.
I am using this phone from last 3 year and working on it at least 12-14 hours per day buy this phone never let me down anywhere till now.
performance based, look based and battery backup based I am completely satisfied with this phone.