I find it depends on how many I've had...
...but seriously, as a mild-accented Canadian (with some Irish roots), my first assumption is that Glenlivet rolls off the tongue fairly easily and with little room for variance - whereas there are some real puzzlers out there...rOb's website and the soundfiles are a great find - thanks rOb!!!
Is Glenlivet really a puzzler for a crazyirishman???