8.3
For a late port port without online play, it didn't turn out that bad after all.
Yeah, it's too bad there's no online play, but you do get two new characters, both playable right from the get-go.
The other thing about the GameCube version of Deception is that many more characters are unlocked right up front (including Hotaru, Kira, and everyone's favorite, Noob-Smoke), so you immediately get a total of 20 fighters to choose from, whereas the PS2 and Xbox versions have only 12 initially playable. This means there's less reason to play through konquest mode, the key to unlocking most of the game's hidden content. Konquest mode is a drag, so this is a good thing.
For a late port port without online play, it didn't turn out that bad after all.