(I know that the WIAA has little to no interest in getting the "best" teams to state. But some of these proposals are quite feasible)
For decades the WIAA was resistant to post-season seeding of any kind. But, today, they are only a few tweaks away from an optimal seeding structure. The "seed statewide" crowd would make sense if this were Connecticut. WI is far too big to do that, and it is unnecessary.
Let's talk sectional imbalance. This year's D3 southern bracket could make a case for one of the most lopsided sectionals ever.
In the SE bracket of death you have:
St. John's Military
Kettle Moraine Lutheran
Lake Country Lutheran
In the SW you have:
Beloit Turner (who lost to St. Cats by 40, and to East Troy twice)
The SW features a total of 1 conference champ, (SWC) and that league has been mediocre recently. If it still existed, SWAL 2 might sweep the SWAL Shootout. (granted the SWAL is having its best year ever)
But, back to the SE. The 1st , 2nd, and 6th ranked teams are all in the same half sectional. (regionals don't exist anymore)
So what can be done? (these fixes could apply to all team sports)
Step 1: Don't sort teams into sectionals until the middle of the given season.
This is a relic of the pre-internet age. Bracket assignments do not need to be released a year in advance. If football can do it. (though that process also has glaring flaws) then every other team sport can too)
East Troy could go 18-0 in conference and their reward is the above lineup, while Turner gets a relative cakewalk. Make the regular season matter. If a conference is put into multiple sectionals, then the conference champ should be allowed to pick their sectional. (Lake Mills was similarly hurt by this in football last year) Everyone knew that the SE teams listed above were going to be great. At least make an S-curve within each sectional, our state is large but not that large.
Step 2: Re-seed at the sectional semi stage.
If the two best teams in the division are near each other (Dominican / St. Cats during the Diamond Stone era) this would allow them to be sorted away from each other. A simple 1 v 4 2 v 3 setup would not be difficult. Travel would not be that extreme as the sectional is already based on geography. The one flaw in this step is that the game would happen on a weeknight, adding 30-60 minutes of travel could be a non-starter.
Step 3: Re-seed again at the sectional final stage.
Back to this year's sectional. Instead of having St. Cats (1) play Dominican (2) while Turner (3) plays a guaranteed 4 seed, simply re-seed them. Travel might be an issue in the north, but would be no problem in the south. The WIAA has already admitted this, for the past 3 years the "southwest" sectional stretched from Prairie du Chien to Racine. (I wonder why they switched this year?) There would be several gym options in the Madison area to host a game, and I'm sure teams and fans would gladly drive an extra 30-60 minutes for a chance at State.
Step 4: Back to 4 Divisions
So in a few weeks, when D3 SE produces several state-worthy games, as well as Onalaska-Central round 3. Remember that there are some better options out there.
A great irony in WIAA history came during the 1971 Boys Basketball Tournament. In the final single-class tourney Fall Creek met Osseo-Fairchild in the first round, both teams were 18-0. (Osseo won 89-72) It took them 30 years to seed anything, now they are close to optimizing it. Hopefully it doesn't take several decades.