So BH have had a bit of a topsy turvy path in the game as far as viability. Prior to the new releases, Bossk and Jango lead was the way to go. Jango's lead was far better defensively because it was easier for the AI to get the payout off. With a Bossk lead this generally didn't happen, and there are so many teams out there now that handle Bossk lead without breaking a sweat.
Offensively though, you could argue Bossk lead over Jango and even toss Embo lead in there too. It all depends on your circumstances.
With the release of Greef and Mando, the one thing that became really apparent to me is that it's now super easy to get the Bossk payout to go off on offense. Greef and Bossk can both call mass assists and that is super helpful when you can target the right character. When I saw the kits I kind of thought the big problem with Mando's lead was that it would be really hard to get the payout to trigger however it's actually a lot easier than you think if you use the right toons. I've also seen Aurra Sing's lead as a viable option too but I'm not sure they even fixed it yet so I'm still skeptical.
No matter what it seems like the important BH are now Bossk, Jango, Mando, Greef, Boba, Dengar, and Embo. Dengar is crazy valuable under a Bossk lead for healing, and under a Jango or Mando lead you can really get some work in on the payout using his mine attack. Embo is pretty much the only BH with a good dispel, so depending on who you face he's kind of important (and hits crazy hard too).
I'm doubtful suddenly BH are significantly better than what they used to be since they are still crazy squishy even under the best circumstance. I will admit though after seeing the kits I was let down but watching them in action makes me a little more satisfied. Hopefully there is more to come too, but even if not at least they aren't the B team they were for a long time recently
