To be decided by committee. We'd have to study both options and examine the potential negative and positive impacts.

In general the goal of the rent formula would be to keep average rents at a low percentage of average incomes. That means a typical two person apartment should clock in at, say for arguments sake, around 20% of monthly minimum wage. So even if there was some flex in rental prices, it should basically be impossible for anyone to struggle to make rent.

That said, I think it would definitely be important to ensure that an increase in desirability in an area doesn't end up punishing the existing inhabitants. That way lies gentrification. This would tend to argue against factoring in desirability. A waiting list system will naturally push people away from areas that are highly desirable, since no one will want to wait that long for somewhere to live. I suspect that alone would be a sufficient solution, but again, I'd like to see it studied.

Obviously, there are problems this can't solve, but they need their own solutions. More walkable neighbourhoods, better public transit, these are the kind of factors that would help reduce housing pressure on specific areas by making everywhere more desirable to live. Same goes for ensuring fair distribution of resources to schools and other public amenities, and so on.