The Philly team is stacked with hypothetical young talent. Embiid, Noel, MCW, Saric, Wroten, Grant, + whoever they draft in the top 3 this year... If we're talking about 2016... maybe. But 2018, I wouldn't bet against them at all.
We already potentially own Minny's 1st next year if they can find a way to dig out of the bottom 12. It's not impossible... Wiggins is legit. If he follows the path of guys like LeBron/Durant, he's probably not going to make the playoffs until his 3rd year. But there should be major improvement over the next couple years.
Fair point about Brooklyn.. they have some veteran studs and a potential franchise piece of Brook Lopez if he can stay healthy... but that team is a good one to bet against in the next few years. They don't get their pick in 2015, 2016, 2017 or 2018... Unless they make some creative trades they are either going to be a weak playoff team or a lotto squad.