[bunny]

No I think the first group will outperform the second on a huge number of such questions. I do think there are likely to be questions for which the IQ-maximising strategies are not optimal (similar to the groupthink you mentioned above). In that small subset of questions, high IQ will be a liability.

EDIT: Also the problem with IQ tests is that they test all of those things together. Someone in the second group may be much, much better than me in all of the categories you list except for vocabulary (for example). I will then score a higher IQ than them in a test situation even though they will be more likely to get an IQish question right in non-test conditions (once it was patiently explained to them in simple language)