I don't think east finals will be exciting to watch, I would rather focus my attention to the best series which is the west finals.
I think the series will be an uphill battle for the raptors, as they have Jonas Valanciunas out with a bad ankle, and also the Cavs have proven themselves to be a really good playoff team.
The Raptors will be tired, but it's possible the Cavaliers won't be warmed up properly as they haven't played a game for a while. Unless DeRozan and Lowry play the series of their lives, it will be difficult to stop the Cavaliers.
My hope is that the Raptors will win, (and it is possible as they've been playing very well all year) but the Cavaliers are a really sturdy team. We'll see how it goes.