Ok so I am in a bind, I have had a Tokina 10-17mm for a little while, and while I enjoy the lens, I will be travelling extensively during the summer and am pondering my possibilities for purchasing an ultrawide zoom. I want to photograph architecture and landscapes, along with cars. While the fisheye is really nice looking for live music and skateboarding and such it's very specialized in my opinion. Am I looking at it right? There's a 10-22mm Canon and the camera store and I think I will get that or the 11-16 from tokina if I can find it. Which lens will I be happier with?

