By most casual fans' measure, MLB's All-Star Game is the best version of its kind across America's major sports. Basketball's All-Star contests are defense (and intensity) optional, and the NFL's Pro Bowl has become something of a joke that might be beyond saving.
Baseball, on the other hand, gets things right in this regard. Sure, there are always arguments about who should (or shouldn't) have made the team, but as far as the actual game itself, it's typically as entertaining a product as an exhibition game can be (there's a reason they call it the Midsummer Classic, after all).