There aren't really any *bad* cameras so far as image output any more, but I've been hearing a lot of anecdotes about so-so QA/QC of Canon entry-level bodies.

FWIW Pentax has the least expensive weatherproof dslr body, if that's a consideration. Oly still has the smallest body and best kit lenses. Pentax and Oly offer in-body image stabilization. Oly-Pany have the best dust reduction system.I like Nikon's user interface and ergonomics more than the competetion, and they have a very complete lineup, second only to Canon.

Which feels best in your hands? Which would you be happiest taking 25 thousand frames with? At the end of the day, it's a very personal decision.