My definition for a battlefield clone is essentially a single main platform, with ledges on both sides, that has platforms above it. The P:M skyworld fits this, while the original does not, due to the moving platform below. I also wouldn't include luigi's mansion as a battlefield clone due to the peculiarities of the stage. Frigate Orpheon is a bit outside the standard definition if you ask me, what with the platform on the side moving up and down, and the other platforms jutting in in its second form. Yoshi's story, fountain of dreams, and kirby 64 however all fit as far as I'm concerned.
Of course, these are all great stages with a lot of variation within this definition, and the reason we have so many of these is because they're some of the best stages for utilizing all the elements of smash's style of gameplay. They have standard recoveries, they have a stable place of fighting, it all works rather well.
Also true, walls are a common flaw among the stages I pointed out. I'm making the assumption that the modset played with will eliminate wall infinites where they crop up, which is probably a flawed assumption to make on my part.
Still, I have to question, can't we come up with some stages that are a bit more varied than what we have yet still viable?
Here's a quick idea, I can't guarantee it's the best, but I'm just trying to come up with alternate stage layouts. Blue is passthrough, red is a grabbable ledge.
Could someone point out any potential problems with this setup or suggest other ideas for unconventional stage layouts that are still competitively viable?