I enjoy Boondock Saints every time I watch it. Fun story, good action, funny dialogue and Dafoe is awesome. What's not to like?
Perhaps I am influenced by my enjoyment of the documentary
Overnight about the Boston bartender, Troy Duffy, who wrote Boondock and thought he had become an overnight success story and then proceeded to burn every bridge and piss away every shred of his success. Good stuff. Either way I enjoyed Boondock and will continue to do so unashamedly.
The sequel otoh sucked Hulk nuts.