Just my 2 cents, but if you're not buying the 2013 Blue Jays, that's fine, this is just an opinion but here are a few things to think about. As mentioned, the Yankees are not the same threat they use to be, and Boston is going to take a year to get themselves back, but I think they'll be very competitive this season.
Without a doubt, Jose Bautista is the most dangerous hitter in the AL after Mike Trout and Cabrera. And a pretty darn good fielder himself. before his injury in 2012, he was tops in 2011 as a WAR offensive player, and 2nd in 2010, and with Reyes and Cabrera hitting before him, on turf I add? He could easily have 120 RBI's. Cabrera will have an easy time adjusting to the game off the juice. He hit .305 in KC with no protection in that line up, and even though I have no doubt somehow the steriods went into his batting average, you have to be good to hit .346 - no matter what.
As I mentioned earlier, Jose Reyes on turf is going to run around the bases daily in that ballpark. The ball flat out flies in Toronto, and I have no doubt Reyes has a chance to reclaim his batting title from 2011.
There is power everywhere in the lineup.
Bautista, Encarnacion, Rasmus, Lawrie, Lind, Arencibia - all of those guys should hit at least 20 HR's, and Bautista and Encarnacion could hit 40 EACH! Melky might even get to 20 too.
RA Dickey is no fluke. Say what you want about a 38 year old knuckler, and adjusting to AL teams, but he is a different type. His knuckler is not a 68, 69 MPH pitch, it's charted around 84-85, and its gotten better every year, and he has proven himself against teams that he's faced multiple times. Brandon Morrow is a fantastic power pitcher, who I think has had the 2nd best strikeout ratio in baseball (correct me if i'm wrong) Josh Johnson is a former ace that should not be ignored, and Romero was a 15 win, 2.92 ERA pitcher in the AL East in 2011. Mark Buehrle is a nice piece to have on a staff as well. Casey Janssen is a solid closer, and Sergio Santos is coming back after pitching in only 5 games in 2012 after a very successful season with the White Sox in 2011.
They got speed up the wazoo on that roster with Reyes, Bonifacio, and Rajai Davis. and veteran bench help in Maicer Izturis and the calming influence of Derosa to handle Brett Lawrie, which sounds like the 2 are getting along famously.
I think without a doubt the Toronto Blue Jays are as good as they look on paper.