Upload & Sell: Off
I'm about to upgrade from two 1D MarkIII's.
I'm a photojournalist, shooting a good dose of sports. I'm planning on getting a 1DX for one body, and looking at either a 1D MarkIV or 5D MarkIII for my second body. I've not shot the MarkIV or the 5D MarkIII; I've only read reviews and comments about both of them.
Based on reading and reviews, the pros for the 5D Mark III, and for my needs, seem to be: Better focus than 1D Mark IV, and its high ISO performance.
The cons are: Frame rate, the build is not as good as 1D Mark IV, and the sync speed is 1/200.
For the 1D Mark IV, the pros seem to be: Frame rate, build, and 1/300 sync speed.
The cons are: ISO not as good as 5D Mark III.
On the 5D MarkIII's ISO score, I just reread Fred Miranda's review of the 1DX, with particular note of the high ISO performance and comparison between the 1DX and the 5D MarkIII. There also was reference to the 1DX and 1D MarkIV noise performance. http://www.fredmiranda.com/1dx-review/page2.html
So, I'd like expert opinions, please, ideally from those who have similar needs as I, and who have hands-on experience with the 1D MarkIV and the 5D Mark III. Which body would best suit my needs, or suited yours, and why, please? Thanks.