Asking Apple forum members if you should buy Apple or Samsung is kind of funny really. Sure you have an Apple TV and a MacBook Air, and many will say the "eco system" is what keeps them using Apple, but if you are seriously considering another brand, (The Note 10 is a beautiful phone BTW) let's consider your needs.
Do you use your phone to stream content to your Apple TV? If you do get the iPhone, if not then get the Samsung.
Do you sync your phone in iCloud and with your MBA? Get the iPhone or use gmail with the Note 10.
Do you sync photos in iCloud? Get the iPhone or use Google photos with the Note 10.
Do you use FaceTime? Get the iPhone or use Skype with the Note 10.
It really comes down to how you use your phone with your other devices. I know many people who have Apple laptops, and use Android phones. Some sync everything with gmail or use outlook, and use Skype instead of FaceTime. It all depends on your daily needs.
The whole eco system thing can be overrated in my opinion. When my iPhone rings my laptop rings, my iPad rings, and my watch rings all at the same time. Gets pretty annoying sometimes.