I think Luke's plan in Jedi is to get everyone inside the palace and then roll with it. If Han can be spirited away by any one of the gang, great. If not, hopefully Jabba will follow tradition and take them out in the open to be killed. He does. If they have to fight their way out a la Death Star detention block, so be it. The Rancor was a rookie mistake. There was even a cut line about getting Han "in the open". I don't think Jedi needed more money, it needed a better Endor battle and a better part for Han and Lando. And better looping (seriously, it was the first movie they looped and mixed themselves and it made some of the performance seem worse than they are.) Endor needed a Spielberg-type who was good with "live" action scenes. Just look at Raiders, and imagine the forest battle like that, with Han actually involved in it.

Back to Anakin: Seeing Anakin say "what have I done?" in one scene, and slaughter children in the next threw people a little. I think we're meant to infer that once he got a taste of the dark side he liked it, and that was all she wrote. He merely uses Padme and the Republic as justification for everything after that. I'd love to see the first version of "the turn" just to compare.