"What have you heard about Stanford dropping grades for 1L?"
Could go either way--lots of strong support and dissent. I'd imagine the system would look something like Yale's. If change comes, I think it will be a done deal by this fall.
"Why should I choose Stanford?"
Your question is a bit assumptive, in that it seems to imply that I would care where you end up. Why might one choose Stanford? Great school in a great area. I wouldn't recommend it over Yale, and I'd say it's basically a tossup with Harvard.
"Why did you choose Stanford?"
"Is it worth it?"
I'd be willing to pay $30-40,000 more to go here than any one of CCN. Others with different preferences and inclinations might weigh matters differently.