I like the PowerShot better.
1. I agree with everyone else, Canon is a great camera brand whereas Sony isn’t. You’ll probably just get better pictures from the Canon.
2. I give a lot of importance to zoom. The PowerShot has a better optical zoom, which is what I care about.
3. I don’t really care about megapixels at that level because the difference between 13.6 and 14.7 isn’t going to be noticeable unless you want to blow the pictures up to, like, the size of your wall practically. (Okay, so that might be a slight exaggeration.) But even so, the PowerShot has more.
Other than that they are basically the same for the stuff I happen to look at. Ultimately, the differences aren’t really huge so I would probably look at the cameras and see which was easier to use and felt better in my hand. But probably I’d go with the PowerShot as long as it wasn’t just awful to hold or something.