I'm A Banana
Potassium-Rich
What about keeping alignments from players altogether and keep a DM only record of them? Would this possibly work?
I do this in my own games.
The players generally choose which alignment they want to try to play, and usually stick pretty close to it.
But I am the final arbiter, when it comes down to it. If the self-described Chaotic Good wizard isi willing to compromise for the power of magic, and persues a directed and consistent daily regimen, I'm not going to feel too bad about saying "Sorry, you're lawful neutral."
Also, make sure that alignment isn't a judgement of the character's actions. As long as they work with the group, who cares if they're evil?

If your players want to be a particular alignment, advise them, but don't force anything. If they're generally neutral and they're sticking out their neck for the Good, be sure to let 'em know. There's no PENALTY for alignment change, nothing wrong in having a change of heart and philosophy.
Yeah. Basically, I enjoy the interesting complexities alignment introduces, toying with expectations, reveling in ambiguities. IMHO, having alignment increases the player's awareness and conciousness of how it affects their characters...letting them know that they'll be defined and held accountable for their character choices in mechanical terms makes them acutely aware of how their characters are acting. And it often gives a lot of aide to those playing characters significantly different from their selves.