Tito's is superb. But Monopolowa (sold by TJ for about half the price of Tito) is even better

Not American, though (made in Vienna). The heavily marketed brands such as Belvedere and Grey Goose have never been the finest, though they are good. And Smirnoff red (made in USA) regularly wins blind tastings -- showing that non-artisanal vodka can be good too, though without the nuances that Tito's etc. have.