Several of the mnemonics used in decision making are shown on slide 5.
https://www.dropbox.com/s/c5otpsl20a...g%20I.pdf?dl=0
The choice of which is used could be influenced by operators emphasis on aspects in the process; e.g. understanding the situation, risk assessment. Also, safety principles, a satisfactory solution (safe outcome) vs the best solution.
The as intended aspect depends on the overall process, this starts with awareness and continues to the decision:-
https://www.dropbox.com/s/7f9h8qh8yh...%20II.pdf?dl=0
https://www.dropbox.com/s/sk5agfbjbu...20III.pdf?dl=0
Mnemonics used in training do not necessarily have the same value in operation.
Many operational decisions have limited time periods, requiring naturalistic or situation recognition decision making which depends on expertise; thus which is the better mnemonic in real operations for developing experience.
Considering the latter, this might be an interesting investigation: - which mnemonic better aids learning and expertise. Then which provides the more the optimum results - but beware hindsight, which could also influence which is recommended.
I did not use any in my flying; decision making was within airmanship, but I don't know how that was taught or improved.
https://www.dropbox.com/s/bhpin7se6m...light.ppt?dl=0