Russian vodka reigns supreme. Haven't had Russian Standard, but having been there I have had more premium Russian vodka than I can name, with probably half a dozen unopened bottles on the shelf, every one of which I am sure clobbers any non-Russian vodka and probably any Russian vodka of any type sold here in the USA.
In fact, near as I can tell, it seems they don't hardly let any of their really good vodka out of the country. I've had supposedly Russian vodka bought here in the US that was nowhere near what I have at home, all brought from Russia.
Some of the bottles they come in by the way are a work of art.