Neither should state politicians, IMO. They should be drawn by a computer with the criteria being to make them as compact and equal in population as possible. Then legislatures actually WOULD represent the state as a whole, rather than the interests of one particular segment of the state.
Only if Au2orepublican and/or Galactic Overlord in chief knows something about programing computers.
Or that chess computer, "Deep Blue", could do it. Since blue is the true and rightful color of the GOP I'm sure it would checkmate democrat chances for victory.
Seriously though, as long as we have this edge in state governments, traditional partisan redistricting is our best bet nationally. We could maybe try your computer thing here in IL though. Fairness is an illusion, socialist scum must be defeated using any means necessary.
Speaking of which, Nevada needs to re-re-district, forthwith.
Another idea is to overturn Reynolds v. Sims, so that one house of each legislature could represent people on a geographical basis (ideally, counties). That’s one house in each legislature that would not be subject to gerrymandering.
(Whoever wrote the majority opinion in Reynolds v. Sims should have been impeached, convicted and removed, but that would be a rare bird indeed.)