Thanks for your questions.
1. Here's a detailed movie tutorial showing how to create panel from Gerber in FAB 3000:
2. We don't have a direct comparison chart between any other CAM tools, however many FAB 3000 strengths (that others do not offer or not at the same level) are listed on the FAB 3000 (web page) with movie tutorials:
Here are some other benefits of FAB 3000:
We sincerely appreciate your interest, and feel free to ask me any questions.