I, too, believe we could use a lot more pro-Union protagonists in Westerns, as opposed to Southern fighters. I don't consider OUTLAND a Western, and since DJANGO is deep South-set, it's really only an adapted Spaghetti Western. And while THE FLINTSTONES was clearly a HONEYMOONERS rip-off, wasn't THE JETSONS a FLINTSTONES one? Not to get off the track too much...
One film I don't believe was mentioned here was the excellent TRUE GRIT remake, which if you leave out DJANGO is currently the most nationally sucessful, barring inflation.
I think there is something to be said for the geographic argument regarding Westerns, but there is also ocasional room for leeway, thematically or location-wise. They'd be the exceptions to the rule, however.