1-5 is pretty much separating from the rest of the East at the moment. Granted, the Nets are still super scary when healthy, but with how much time is left in the regular season I think they'll stay the 8 seed and be in the play-in tournament.
Still think ultimately, 4 seed is the best play here. Get HCA 1st round against probably Chicago, then get Miami in all likelihood and have BKN/MIL/PHI beat each other up.
I think BKN is very likely getting the 7 seed after the play-in tournament, so if we get the 4 seed we have no way of playing them until the ECF at earliest. Same with PHI/MIL if they stay the 2-3 seeds.