You've read the reviews and have formed your own opinions on the devices you've owned and currently own, but with our vast access to devices, the best smartphones feature is meant to highlight the stuff that matters, what we'd buy for ourselves based in a number of factors (particularly price point) and thus make it easier for you to buy the best possible device.
I've recommended every iteration of the Moto G since it first launched four years ago. Motorola consistently nails it, producing excellent budget smartphones year after year. Most new Moto G phones are only minor upgrades on their predecessor, but with little improvements here and there, and an affordable price point, the Moto G line is hard to pass up.
Suffering from battery anxiety sucks, so I recently went on a crusade to find the flagship smartphone with the best battery life. Like most phones the Moto Z's battery is non-removable, but you can magnetically attach a battery mod to the rear of the device that provides a significant stamina boost. Moto Mods are simple and sleek. The results are great, too.
For budget smartphone buyers, the phone series I continually recommend is the Motorola Moto G. Now in its fourth iteration, the Moto G has delivered excellent entry-level value since its inception, despite increasingly stronger competition from Chinese vendors. The recently-released Moto G4 Play is no exception.