A significant number of the bullseye "regulars" at our outdoor range are very vocal in their praise and support of Dillon products.
IMHO, Dillon is best for the high volume loader though, while Lee, RCBS, Redding, etc are more suitable for the low volume loader.
Frankly, I enjoy the reloading part just as much as the shooting part, and a Lee single stage works just fine for my paltry 150-200 rounds a week.
Of course, that doesn't stop the Dillon supporters from beating me about the head and neck with their Dillon hats each time I mention the word Lee.
