yjchua95 has made a bold point. I don't think it matters how latest and great the camera or any form of technology is, it's the person behind it all that makes the difference.
I respectfully disagree. When shooting sports and wildlife there is no substitute for fast AF and high frame rates. I had a 5D2 on safari. Fine for the landscape shots but not charging wildlife. The 7D is a far better choice for sports and wildlife. As soon as 5D3 came out, I swapped th 5D2 for it. That is a body that can equally do great stills and also wildlife.