I like the way Jack looks better (younger John essentially), but John wins in every other respect. Btw, the guy that voices Jack is in No Country For Old Men:
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As for the ending itself, I found it very dramatic and emotional, but it essentially made your entire journey pointless. I know John's death is supposed to represent the death of the West and everything, but the fact is, that Jack ends up an outlaw just like John, something John fought and gave up his life to try and prevent. Hell, they could've ended it Gran Torino style, where the main guy gets shot and killed, but still have a happy ending afterward reflecting on the guy's sacrifice or something. And honestly, I didn't even find the true end that satisfying, because to me, I never found the duels that fun, and killing him in that manner just took all the satisfaction out of it for me. I'd had preferred to have took out both of his legs, then executed him, or at least something better than that. Oh well, I'm still curious if they're going to make a sequel though.