We can argue about which makes a better camera, when it comes to web sites Canon are a bit behind. I tried last night to download a brochure on the 1DsmkIII, after lots of choosing this that and the other I'm still no nearer to getting one, as for finding out about the wi-fi gps option, I got zilch from the site. Why if I'm looking at the 1DsmkIII page can't I just download a brochure and details of accessories without going through a menu system and doing a search to be told it can't find the product. It's not that I'm asking for anything difficult like a mirror up button.
Compare that with the ease and beauty of the Leica site, it's like your favourite comfy coffee bar.
http://www.leica-camera.com/ A big well done Leica for the ease and joy to use.
Kevin.