research them all some. For me it is Nikon all the way but we have several members that swear by Canon. Have you compared them on Dpreview?

Here is the link for the 3 your are thinking of compared side by side. There are in depth reviews, sample galleries, and owner opinions.

I don't think you can go wrong with either of them. It is just a matter of what serves you best. And remember Mpx is not the most important thing. All 3 of these cameras are on the same level but the Mpx varies from as you said 10-6.1.

Good luck on whichever you choose and let us know.

Michelle