Yes, digital phone is much better,
however, IMH, its the provider that will cause more trouble.
For instance, #1 provider might have better reception in this area, but #2 provider might have better reception in other areas. The phone itself is pretty important, just don't forget to get a good provider too.'
I am currently using an Ericsson T39 world phone, tri-band 900/1800/1900 using Voicestream. In Chicago, Voicestream provide the best reception, however, when i go outside of chicago. Other companies i.e At&T have better reception.