Well, these are for kids and parents - I don't think Hasbro's trying to hit the collector niche with battle packs any more.
Vader and Fett always sell well, and Luke has too - I think that set will do just fine. Especially since there's no other Boba Fett figures out right now, and any Luke out is in a different outfit...
The Jedi/Maul set though is going to be in competition with other sculpts of those characters on the pegs... but the ESB set, I think is much better than the Geonosis and Mos Eisley sets that are out now.
At least these are new sculpts... and if I were a non-collector parent who had a son that liked Star Wars, the ESB set would be a pretty easy pick-up. Actually, I will probably get one set for my son of that and one for me. None of the others though, unless he really wants the Jedi/Maul set.