Warning! Don’t show that post to your Canon friends, they could become very angry ;)
It’s right, Canon has a much wider lens range and a more professional/complete system. But you can no longer say that Canon sensors are really better than Sony sensors. De facto DxOmark (Click here) proved that Sony do deliver a better image quality than Canon sensors! See the image on top. The new Canon 600D gets easily beaten by both SLT and DSRL Sony models. Also the much more expensive Canon 7D can’t come close to the Sony cameras (Click here to see that at DxOmark). Now let’s hope Sony can prove to be a reliable system by releasing new lenses too and by improving their customer service. If that happens I am sure they will get much closer at Canon in terms of sales share.
Check out those direct links to see price and specs of the cameras:
Sony A55 at Amazon, B&H, Adorama, eBay.
Sony A33 at Amazon, B&H, Adorama, eBay.
Canon T3i/600D a Amazon, B&H, Adorama, eBay.
Canon 7D at Amazon, B&H, Adorama, eBay.