I was a huge fan of Canon's G9. Then my wife stole it. Now, I'm looking at Nikon's P7100 vs. Canon"s G15. The Nikon is going to get the nod. These cameras are as good as it gets in any but the most demanding hands.
As far as choosing a camera, do so with you hands. See how it feels in YOUR hand. Don't even look at the label. Nikon and Canon are both top choices.