I would take the person who only used AI.
Why?
Your fictional problem has the silent assumption that if you are in a high value meeting, you shall act more conservatively (i.e. reduce risk for reliability, even if you loose chances/opportunities). But this is rather a statement that the respective person acts on a risk-averse profile.
I rather have a risk-affine profile. Because it is likely that everybody else in the meeting has a risk-averse profile, it is very likely that if I act on the "non-conservative" choice and I am right, I will have a huge advantage. On the other hand, if I act on the conservative choice, I won't have any advantage over the other participants.
Since I am risk-affine person, I am willing to risk it. :-)