Class B Question

Howdy,

I need an opinion on what to do with some class B addresses. We've got
a couple laying around that I could be able to free up by the start of
summer and we could return them to the InterNIC for giving to someone
more worthy. Alternatively, I could treat the B's as another CIDR block
and allocate addresses from them. Any opinion on which is the better
thing to do?

thanks,
henry