Yankees a good possibility to be on top, but don't assume the Sox will be on top--they're a Ortiz-level big bat short of even being considered a realistic contender now, and there are massive holes on the Sox roster, especially at 3B, and C.. and there's the inevitable decline of Pedroia, which already has started.. and the rotation's mediocre after Sale and there's no certainty what Price will bring when healthy..
In addition, Boston faces major problems long term thanks to Dombrowski burning down the farm to get Sale, Thornburg(injured), and others.. they have one legit prospect right now in Devers, who is a long ways from being major league ready, and may not stay at 3B..