I think if I were running multiple YT's, I might have put more of the "good stuff" on Chewie. As it sits, I looked at the list, saw this absolutely terrifying Han and a Chewie that's harder to take down (because of the no crits ability) and said yep! Han dies first. Splitting the stuff up would make it a more difficult choice (that, and Han/Luke/marksmanship seems like massive overkill on hitting accuracy).
Overall, I don't find darth vader all that incredible, he chews through my own hp too fast with his hatred. But as you can tell from my list (vader, Autoblaster, bomb) I like anything that takes the randomness of defense dice out of killing the enemy.
The bomb though, yeah. Familiarize yourself with all 3 bombs. Ask Chris what happens when someone spams bombers...I was afraid I was telegraphing the bomb far too much and you'd hit full throttle to jump over it, but if you were unaware of bomb rules that makes how the game went down make more sense. That's in theory why I play bombs with Fett, so he can go last and drop the bomb on the proper turn...but all the rebel lists I've played recently have been pretty close to nothing but PS 8 and 9 super jerks. Same with the interceptor who jumps out of people's LoS with boosts and barrel rolls after he attacks.