I'd prefer that dialogue choices 'create' your alignment rather than your alignment forces dialogue choices. If you have a choice of:
1. Kill the tieflings.
2. Negotiate a price with the tieflings for helping them.
3. Help the tieflings.
It should offer each option, and not the one close to your chosen alignment. After all, maybe you are Good but really hate tieflings (one kicked my puppy, you know), or really Evil but feel kinship with them. Choosing the 'good' option should nudge you towards good, and so on.
It's a feature I dislike in PF:KM. Just because I'm not Good, I should be able to spare the Bandit deputy. Maybe I plan to persuade her to help me later. Maybe I admire her choice of career and want her as a friend. Or whatever. I could even be insane and listening to voices. CE or CN, after all, mean that I would rarely be consistent.
