The Bruins have had a great season so far, but they need to finish it off. They definitely have all of the pieces to do so, but I've seen them come up just short multiple times before, so I'm not getting my hopes up. I do think they are clearly the best team in the Eastern Conference. On paper, they should be able to make it to the Stanley Cup Finals. I think the Avs and Oilers could cause some issues though, but both of those teams have their flaws as well.
Honestly, if you look back over the past 15 years or so, you would likely think the Bruins would have more than one Stanley Cup with the teams they've had.