<p>Both nothing or class-based is MUCH better than race-based.</p>
<p>The only reason race-based even came about was because they were assuming classes associated with those races.</p>
<p>My uncle was telling me about how when he was in law school there were a few blacks there and all of them were from wealthy families but they were all getting their tuition and such paid for because of their race, while many poorer white kids had to work jobs while keeping their grades up so they could continue to pay for tuition. Doing nothing makes more sense than that and class-based would actually be aimed at the problem affirmative action was trying to fix in the first place.</p>