I like both Damon and Affleck. But I must say, and I think it's rather obvious, that Damon makes much better career choices with the scripts he chooses than Affleck. Granted, some of his movies have done rather poorly as well, but at least those were films that not only had the potential to be good but also challenged Damon.
Forces of Nature didn't really challenge Affleck much nor did it ever seem as though there was potential in it to be any good.
But they're both cool dudes in my book. And being from Boston, I gotta give'em the