I had D7000 before but I sold it and now have 7D.
7D's AF is more customizable than D7000 and has more cross type points, but I actually feel D7000's AF is a bit better when tracking moving subject.
And I don't like how I have to press the AF point selection button on 7D every single time so that I can choose another focusing point. On D7000, I just use the multi controller to choose 1 focusing point and then half press shutter button to focus, and if I wanna choose another point, just use the controller again.
So on 7D:
AF point selection button
Control dial/main dial/multi controller
Shutter
.
.
.
to choose another point on 7D:
AF point selection button
Control dial/main dial/multi controller
Shutter
On D7000:
multi controller
Shutter
.
.
.
to choose another point on D7000:
multi controller
shutter
Canon sucks at ergonomics, and they just started to put multifunction button at the front of the camera body after Nikon has done it for ages