Tourists beware - the selection is ridiculously small, and unless you're shopping for a fine bottle of wine to bring as a gift somewhere, go to another store with a selection.
If I remember correctly, there were four selections in the "Canadian Whiskey" department - Crown, CC, Wayne Gretsky, and High River.
Also - navigating the PATH as a tourist is a pain anyway, so my advice is to go to an street-level store with a selection.