I have the 24-105 and I really love it! I rented the 24-70 for a wedding I shot a few weeks ago, and I was really impressed with that lens as well. However, I primarily photography lanscapes, so I really won't have much use for the 2.8, and the added reach of the 24-105, plus the IS really stood out for me. Don't get me wrong, the 24-70 is a great lens, but for my style of photography, the 24-105 won out.



