Dependents and Child- Tax/Education Credit

I have 3 kids in college, twins that are 20 and an 18 year-old.  

It seems they would be better served if I do NOT claim them as dependents and they each receive a $1,000 Education Credit. Otherwise, I only qualify for a $500 Dependent child tax credit.

 

$1,000 credit to each ($3,000 total) versus just $500 for me seems like a no-brainer

 

What would you recommend?