Most of the examples that are given aren't correct. Also, the brain needs all of the lobes to do many tasks. I think that only one, or perhaps two of the "gamer functions" are specialized enough to have a most "important" lobe of the brain.

For instance: The occipital lobe alone would only allow you to perceive an image, without being able to know what the image even is, where it is, what it's related to. You wouldn't be able to even react to it. So by itself, it doesn't have any really have anything to do with "getting a headshot", it's more relevant to "seeing an indescribable and incomprehensible image".

With the cerebellum alone, you wouldn't even be able to push a button, decide to push it, know what it looks like, or know what it is. And the frontal lobe has more to do with manual bodily movement than the cerebellum.

In reading these sentences you would need the occipital lobe for perceiving the raw images, the temporal lobe for being able to combine the letters into words and then into sentences, and for even being able to comprehend the words. The frontal lobe for making judgements about them and for controlling your eyes. And so on.

The parietal lobe's so called "gamer function" is much more relevant to the frontal lobe.

The frontal lobe's "gamer function" is on the ball though. And the temporal lobe's is pretty close.

Paul's the "know it all". I just made him up :p