Love the force push idea! I always hated Ani wanting to do right by the Jedi by sending Palps to trial in one breath, then pledge his allegiance to the sith in the next. Not to mention Mace stepping out of the Jedi rulebook and play executioner. What if Mace had succeeded? "I am a BAMF and this Empire is MINE!!!" :)
I would think by now Ani had already made his decision if the previous confrontation with Palps was more of a "you have a choice to make" type situation. That way in the Mace scene it is simply obvious what that decision was.
His turn, I think, should be equally based off of the "power" he would gain rather than just saving Padme. He always cried about being held back... here is an opportunity where he can be fully appreciated, and moulded into who he has always wanted to be.