I'd pick the Astros, Yankees or Red Sox over the Dodgers. Can't overlook the Phillies either. They've been steadily improving and now have the Harper factor.

I'm not as enamored with the Astros as a lot of people.
I've read many experts express regular concern about starter mechanics, and these pundits have to have read that too. (Or talked directly to those experts)
Team has 2 starters go creaky and they aren't winning the WS.
Look at the Cubs. They won a WS, the line up is still excellent, but a couple starters went sideways and they got eliminated in 1 game!

1): Injuries
2): Trades (especially those made in July)
3): Minor league promotions

No August waiver wire anymore, otherwise that would have been the 4th.

Anything can happen