Kind of a two-fold question. Is Navteq data still the best for USA?, and if so: Is iGuidance still the only laptop navigation software that uses it?
I currently use iGuidance v4 (although at the moment it's broken on my laptop due to their stupid activation mess).
I have used MS Streets and Trips, Delorme Street Atlas Usa, and iGuidance. It's been a few years since I looked at MS S&T, but at the time, it was garbage, even though they were using Navteq data. Delorme's interface is good, but their map data is an absolute joke. Where I live, in Bend, Oregon we have a parkway that was built about 12 years ago, and Delorme still doesn't know about it.