Staying with Palpatine might have made it seem more realistic. I mean, I know the name of the game was conflict, but the way it worked now just made him seem too wishy-washy, and when he made his final decision, it was without any basis. So Palpatine spends some time in the movie trying to get Anakin to trust him, and it pretty much works for some apparent reason until he admits he's a Sith. Then Anakin does a complete 180, "I have to do the right thing, and you have just been manipulating me," understanding of the situation. Big hero man, he stupidly leaves Palpatine alone after telling him, "I'm bringing my buddies to take you down," to go and bring in the calvary, complete with his idiotically funny line, "I've just learned a terrible truth. I think the Chancellor is a Sith Lord." He even volunteers to go with them and help take him down. But Mace says no, so then Anakin thinks, "Darn, I'm an idiot. I should go and stop this." I'm not qute sure what it was he was trying to accomplish initially when he waltzes back into Palpatine's office, but he ends up screwing himself for no apparent reason and then realizing all along he was meant to be evil with that extremely evil line, "What have I done?!"

I think any change from that, aside from the two of them dressing up like clowns and making balloon animals could have been an improvement from what we got.