Here are a couple of my favorite research sites. Don't let all the information confuse you but rather use it as a guide. I shoot a Canon 70D with a Canon 70-200 f4 L IS. It doesn't get the best scores bit it takes great photos. My camera being a crop sensor does not score well compared to full frame bodies but I understand that.
Thanks for forwarding these links to me. In all my research, I hadn't seen these sites.
I ordered the Tokina 11-16mm on Monday--I hope it fits the bill.