I have been using CFBuilder now everyday since it was in beta and have a few reflections:
1. OBVIOUS – It is not as developed as CFEclipse and as such has some irritating bugs that will be worked out in time.
2. Needs to have tighter Aptana tie in.
3. Should include a SVN client.
4. Server management ROCKS.
5. Tag insight and introspection show be a little quicker.