Haven't used BaseCamp, been using Garmin's older MapSource, useful for dealing with my route saves and loading my GPSMap (different functions from auto navigation).
For route planning I have Street Atlas, Streets and Trips, and use MapQuest to plan trips for other people (I can send the results). Have also used Google Maps (online and iOS app) and Apple's maps and app. Depends on what tool is handiest.
For TRIP planning, I prefer Streets & Trips for its flexibiliity, the way I can quickly do multiple variations on a trip idea and adjust the details. I could probably do the same in Street Atlas, but mine is buried in Topo (my prime use of DeLorme) and I am more fluent in S&T. All of these tools have a learning curve.
None is sufficient alone, for my use. My trip planning includes a lot of outside material about where to go and what to see, where to stay. It also includes a Motor Carrier's Road Atlas, and sometimes highway department maps, for information not well used by software planning tools.
Compatibility with and brand of GPS is a non-issue for me, since I do not let an electronic device running software using routing asumptions I disagree with, against often inaccurate data, blindly feed me turn by turn directions. I used to develop these databases and routing tools, I know what has to be done to provide acceptable times to come up with an answer, and would rather look at the data with intelligence and come up with my own answers.
