flight delayed - compensation offers

my flight to ord to flr, with connection in cdg got delayed and i missed the connection and was booked 6 hours later.

called delta corporate customer care today and they offered 15k miles per passenger, total 3 passengers or 200 voucher per person that i have to use it by next year.

i am leaning towards getting the miles, as that would net me 45k miles with mile transfer fee, but i can use that for another award ticket.

what do you guys think of this?