You're out of touch with the US whiskey scene. Right now is sort of a golden age for the spirit, and that includes America. While corn is predominant (and there is absolutely nothing wrong with that), an increasing number of US distillers are producing single malt offerings. Nothing wrong with Four Roses, but it's unremarkable amidst numerous other quality bourbons, some craft and some from larger distillers such as Heaven Hill or Buffalo Trace.
And for the record, my whisky of choice isn't American at all, it's Islay.