The whole 'Infinity' deal at Marvel. The first miniseries, The Infinity Gauntlet, was good, but then came the crappiness of the Infinity War, followed by the infantile religiosity of the Infinity Crusade, and a few years later the (admittedly cool, in a fanboyish way) Infinity Abyss. The titles were kind of appropriate, cos it seemed like the thing was never going to fucking end.
Oh well, at least Jim Starlin has kind of burned his bridges at Marvel, so it looks like we've seen the end of the Infinity saga.