It may be a sample size of one and whatnot, but as a European, the best security experience I've had has been in the US (LAX), by far.
In my neck of the woods, I have to take out basically everything from my carry-on. Laptop, camera, lenses, you name it, they want it out. Phone, keys, ditto. They usually ask for the belt to come out, too, and sometimes even the shoes. And this is even for internal flights.
LAX, by contrast, aside a circus number with some dogs sniffing people, was AOK. Everything stayed in the bag, the line moved constantly.
In my neck of the woods, I have to take out basically everything from my carry-on. Laptop, camera, lenses, you name it, they want it out. Phone, keys, ditto. They usually ask for the belt to come out, too, and sometimes even the shoes. And this is even for internal flights.
LAX, by contrast, aside a circus number with some dogs sniffing people, was AOK. Everything stayed in the bag, the line moved constantly.