Well, Delray would be a slightly shorter commute. I live on the same street as my job so I don't need to take the highway to commute to work, so I can't really comment on rush hour traffic. The main roads themselves do get clogged during rush hour, however, but it's not as bad as the two counties down south.
Most people that work in the central county/West Palm Beach do live in the suburbs of the county though, so it oughta be doable.
And
from another topic, here's Boca Raton vs Delray Beach:
"Boca Raton is majority Jewish and mostly higher class. Most people would agree that there's a very snobby feel to it overall. It's safe, however, but it's pricey.
Delray Beach has many areas that look similar to Boca Raton but it also has more poor sections than Boca does. Delray Beach pretty much lacks a middle class - think a divided line between the rich and the poor.
Boca has better public schools as well."