I really think the air comes down to case or no case. If you can use your phone with no case the air has the best in hand feel of any iphone since the X. If you put a case on it just feels like a thinner iphone but loses its magic. I have always used a leather case so Im trying to adjust to using the air with no case but its much more slippery than having a leather case on it. I really think it you want a light phone and you use a case the 17 is the way to go. If you go caseless the feel of the air is worth the trades off for my use cases.