5D3 or 1D4 ?
I have had a 5DII, ID4 and now the 5DIII. I loved the 5DII but the auto focus frustrated me. I loved the 1D4 for frame rate for sport but somehow always found it lacked the IQ of the 5DII and I sold it. I absolutely love the 5dIII and the focus seems to outperforms the ID4 and now I'm happy with my FF and IQ. I think this camera covers all bases for me.. Sport (surfing, kite surfing, go-karting and family mostly.)