This question hasn't really been definitively answered by anybody. To give stupid Tom some credit, he did try to suggest an answer. He says they should all be square, like a township plat map. Now, that would be childishly stupid and unfair, but props to him for applying the full force of his 75 IQ to the problem.
Here are my thoughts.
The primary criterion should be that the population of all the districts should be the same, within some fairly slim margin, say, 1% of the total state population.
The second criterion should be that a district should be as geographically straightforward as possible. Its elements should be as closely contiguous to one another as possible, given the limitations of terrain and existing settlement patterns.
The third criterion is that the residents of a district should have common interests and concerns. This would obviously mean not cobbling together districts that are half rural and half urban--or half urban and half suburban.
The fourth criterion is that when district maps are drawn, party affiliation and voting records should be ignored. This would prevent favoritism and remove the reason for gerrymandering.
Lastly, there should be an independent national body that must approve district maps before they become valid, as Democrats wanted but Republicans blocked.
What do you think? I'd even like to hear the opinions of our dumb fuck Trump-licking MAGA maggots on this one. You guys yeep about gerrymandering, but only when Democrats do it. So what makes a fair district map?