if we see a locke (MiB) vs locke (Jacob) battle the show will have officially jumped the shark

I really don't think the term "jumped the shark" can apply to Lost. Shows typically "jump the shark" when they are trying to revitalize the show to get renewed and hang on for another season or two. Lost is ending - therefore, it can't really "jump the shark".

The term "Jumping the Shark" has jumped the shark.

I agree. Especially since most people using it don't really understand it.

I think Lost already jumped the shark with nikki and paulo

A Locke vs Locke scenario would be awesome yet ridiculous
I would enjoy it, but at the same time feel it was too cheesy

I'm not trying to insult you or the show but Lost seems to "Jump the Shark" at least once a season... so I think it'd be just as good as any other ending for the show. I wouldn't be upset if it were that ending... I'd prefer it not to go the way of God vs. the Devil as I also watch Supernatural and two God vs. Satan endings in one year might just finish me off. Locke vs. MiB Locke wouldn't negate that I guess, but it's not the end of the world if that's what plays out.

if we see a locke (MiB) vs locke (Jacob) battle the show will have officially jumped the sharkAww, I thought that would be an epic way to end this.. Locke vs. Locke or maybe even Locke vs. Jack..