Here is a comparison link:

Notice the red stars.
That represents the rating of camera owners.
Right under the red stars is a link.
Click that link to read what owners haver to say.

Regarding pixel density on the CCD sensor assembly.
On the comparison chart - look down the chart until you see "Pixel Density"
It shows that the Canon has a more favorable density as opposed to the Sony.
The Canon density is about the same as 7 megapixels on a 1/2.5 sensor.
To read about the meaning of pixel density, click the yellow question mark "?" on that row.

Smaller camera:
The Sony is smaller OK, but by only 0.1 inch (length and height).
See the size at the bottom of the comparison chart.

Image quality is just about equal on these two cameras.
Too close to call.