Should I get the Canon XSi or is there a better digital slr out there?

Nikon D3100 is a phenomenal deal for non professionals, the rest of us people that want to take family and travel shots. I've owned DSLRs since 2004, starting with a Nikon D70 and then moving to D40, D200 and Canon Digital Rebel XSi 12.2 MP Digital SLR Camera with EF-S 18-55mm f/3.5-5.6 IS Lens (Black) and Canon EOS 40D 10.1MP Digital SLR Camera (Body Only). Those are all excellent cameras, but this Nikon D3100 is better than all of those in one crucial area, the area that matters: it takes excellent pictures without having to fiddle with the settings between shots.