amascuba:I don't have a copy of the NAUI standards on hand. Maybe somebody else who does could enlighten you. The GUE standards are available from their website:
http://www.gue.com/Training/Standards/GUE_Standards_2006_ver4.pdf
Thanks for the info on GUE, I look forward to reviewing it. But surely someone who is as familiar as yourself with both the NAUI and PADI standards could come up with some of the huge differences you mentioned. If it's that big a difference, and you are confidant that you know what you are talking about, surely you have at least a partial list that you can recite.
Thanks for jumping into the conversation, the more opinions the better.