Well, I understand that, but a lot of Bowser's matchups DO come down to Bowser being hot garbage on most flat stages, including SV. I never said I would pick Dreamland as Bowser, as it still probably favors the opponent. But I'd be okay with playing on it, cause I could still do more than I can on FD/PS2 and even SV.
Oracle had a good explanation of the stagelist on the FB page that has put me firmly in favor of 9 stages, 2 bans in all sets. If you rank all the stages from most advantageous to least advantageous, you get 1 2 3 4 5 6 7 8 9. Ideally, you would ban 8 and 9. Your opponent would ban 1 and 2. Your CP's would be 3 and 4. Your opponent's would be 6 and 7. 5 would be the game 1 stage. Again, this is considering ideal bans and both players winning on their respective CP's. As you can see, neither side is rewarded too much for losing, cause the further you get into the set, the closer to neutral the choices are, which is good for competition. You also don't run out of stages like I had feared because I'm bad at math.
So plug in Bowser vs. Fox. If I'm Bowser, it probably looks like 1. WL, 2. FoD, 3. BF, 4. GHZ, 5. BC, 6. DL, 7. SV, 8. PS2, 9. FD. I think you can find a lot of matchups where GHZ, BC, and DL are right in the middle given that the stage layouts themselves are the least polarizing. GHZ is small, but flat. DL is large, but tri-plat. BC is the closest to a true-medium we have outside of matchups where blastzones matter.