I, too, am disappointed in the Canon's choice of bodies. While the 1Dx is undoubtedly a great camera, I shoot wildlife and would prefer to have an APS-H sensor. The extra reach is important to me (the 500mm F4 IS Mark 1 is a lot lighter than the 600mm Mark 1).
I find this interesting. A 1D X image cropped to APS-H framing will have as good (low ISO) or better (high ISO) IQ, with slightly fewer MP. Comparing the 1D X to the 1DIV, the former has a faster frame rate, better metering and better AF.
I experienced this myself and sold my 1D4. The 1DX images cropped to the FOV of the 1D4 had better or at worst equal, IQ.