If you're talking the two I'm thinking of, they came out at the same time, and I actually like Wyatt Earp better. Problem is that Kevin Costner makes epics that are as commercially popular with theater owners and tv networks as Queen and Iron Butterfly are with radio stations. In this case I'm not saying they shouldn't do a sequel, but why do a copy. They could take the same characters, and follow their lives down one of the many branches open.
M58 is right -
Wyatt Earp and Tombstone are not remakes of each other, but were contemporaneous offerings from competing studios - another Hollyweird oddity of behavior. I would have noted this previously but some of us do go to bed at night!!!!
Wyatt Earp is actually a half-way decent
movie epic, more true to the history than
Tombstone. For example, Earp carried his revolver in the pocket of his frock coat and not in a holster in the shootout -
Wyatt Earp had this right,
Tombstone had Russell as Earp wearing a holster.
Wyatt Earp did leave out Earp's pimping in Illinois though, made him more of a frontier man. However, that said,
Tombstone is a much better told story - not to mention I liked Dana Delany as Josie better than Joanna Going. Actually, much, much better. Of course, we have no documented photos of Josie until much later in her life, so no one really knows what she looked like as a younger woman.
BTTTAIP - I generally dislike even the idea of a remake - Hollyweird has enough problems even getting sequels and prequels right, remakes almost always miss the mark.
One of the few exceptions to this is Dickens' Christmas Carol. Alistair Sims' portrayal of Scrooge is hardly the first (or last), but that is the version (from early 1950's IIRC) that I watch every time this year.
As for the
True Grit remake, I will probably watch it when it comes out on DVD, just because I watch westerns a lot. I will admit I have not yet seen
Sukiyaki Western Django - just saw that in the store and may have to rent it sometime.