Between the two choices you list, for the rear, get the Bridgestone 021. It's a decent, dual compound tire and can last 10k, depending on riding style. The caveat on the wear is it will look like it's only got 1k left for about 3k. That harder compound in the center just stays the same for a while.
The front 021 completely sucks.
The rear Dunlap starts out ok, but wears funky and doesn't last as long as the Bridgestone. At least that was my experience.
Next time order a set of tires online, before you need them. You'll save lots of cash, and have a better selection.