The hitters are not hitting as they did last year, look at the numbers, I guess there pitchers will have to be lights out.
I don't think CLE and NYY are as good as they were last year, and OAK is not built for a long series (though I'm scared of them in the WC game as a Yankee fan).
I think the only AL competition is BOS, but BOS feels like a great regular season team who's pitching will get shelled in October. I also don't think there's a great NL team this year. 4/5 teams essentially had to fight to get it, and the Braves didn't face much competition in the NL East down the stretch so it's hard to get a feel that they're that good.