I can give you my thoughts on each device I own or what I like it does but to compare it's not completely fair .
Example:
I like my note 9 , it has the spen other phones dont have that experience or function.
My 1+6 I like the OS and how fast and fluid it is.
I like my pixels, the camera ,immediate updates , clean android experience
My s10 , like ultrasonic fingerprint, the camera's,battery life ect.
Or my iPhone X fast smooth, like how the UI, beautiful phone but dont like no customization but it's a very very good device
So its different things I like
Cant compare them with each other but i can tell you what i like in each of them .