I've been a champion for the 28-70, and even gave it its nickname. But I've found myself backing into too many walls trying to get enough working distance to take indoor group pictures. So I traded in the Beast this weekend for a 17-55/2.8. Sharpest lens I've ever used, and I think it will be on my camera 90% of the time. Thanks go to Phil Youngblood and others for showing the the way.