Portland and Golden State are the two most overrated teams in the league right now.
I don't see either of them making it past the the second round. I'll be surprised if Golden State even makes it through the first round to be honest.. There defense is just not that good, and if they don't put up at least 100 they're probably not getting the W that night.
Underrated teams in my opinion are Detroit, Chicago, Phoenix, and Memphis.
Pistons are way better than their record shows, and I expect a strong finish to the season to just sneak into the playoffs. If there is any team in the East capable of upsetting Miami or Indiana, I think Detrot definitely has the best chance just because of the size of their team.