Windjammer,
It comes down to, where do you need to be. The one out by the airport is much more convienient to Bethlehem, and downtown Allentown, the "allentown west" one is actually in Fogelsville - so better for the suburbs. Traffic over the years is getting worse, so you probably want to stay closest to where you are going to be having dinner. I've put visiting customers in both places - and they appear about the same. And better than the Hampton Inn which is also in Fogelsville. And I think they're all fairly economical so as within $5 or so per night.
Bike Dodo (an ex-Jerseyite, myself)
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