Uhh esper, none of those stages you suggested are good competitive stages. They're CP's, and probably wouldn't even be that if Brawl had more competitive stages in it. Look at Melee's list, it's 4 BF clones and FD in the neutrals, and Pokemon stadium for CP.
This thread is great. Keep in mind that i don't even think we should be looking for a balance of stages, but rather for a 1/10 ratio of competitive/casual. If we have 100 stages, that means 10 competitive stages, which is plenty.
I'll go through this list in my next post, for now im thinking (competitive) should go next to any neutral stage, (competitive/casual) would go next to counterpick stages, and (casual) would go next to banned stages.