Canon lens help
I've a 7D and use the 24-70L V1 as my walk around lens. I tried out the 24-105 IS and found it not as sharp in the corners. Plus the bokheh at 2.8 is really sweet.
If it were me I'd rent whatever you are considering first. I rented a 24-70 and a friend has a 24-105 so I was able to really test them for my shooting.