I have used both the 7d and 5d3. I prefer the 5d3 in everything except field sports. I shoot some volleyball and basketball and the majority of middle/high school gyms I have better overall results on 5d3. The AF is more accurate, much better high ISO and I have less PP. Haven't shot as much field stuff yet. That being said, I don't shoot for a living but have sold indoor sports pics shot on both. The 7d is better because it costs a whole lot less!

