I picked the Forbidden because I too am a whore for the scythe, the Abyss is damn cool though, but I sort of thought its "Submarine mode" was whack...

In a free for all 6-way melee match? Hmm..

As much as I don't like her, I'd have to pick Stellar in Gaia for that. However, things would be vastly different depending where the battle was. Space would be impossible for Gaia, and watery areas would give Abyss a great advantage, just how mountains would assist Chaos and Raider.

But Stellar, like someone mentioned, as an insane bitch who turns into a ferocious animal in crazy combat, and her animal instincts would especially thrive in a 6-way free-for-all battle. If it were tournament style, I'd pick Auel and Abyss to come out on top, however.