I agree. Not even the first one, considered a classic, is really THAT good. It was up against the likes of THE EXORCIST around the same time, which is a proper masterpiece and completely blows THE OMEN out the water. But the sequels were worse. Funnily, I had the first four movies in a VHS box once (yes, even that fourth TV one scored by Jonathan Sheffer), but sold it at the cusp of the DVD revolution.