Soul Calibur IV would be my favourite fighting game so far, but then I don't own SFIV.

Virtua Fighter 5 (very hard to master.. )
Wait for Tekken 6....
Soul Calibur 4

Soul Calibur 4, that's a sweet game.

Soul Calibur 4 if you didn't like SF4. It's at the opposite end of the spectrum in term of fighting mechanic and relies more on timing with simple command input.

How much is Tekken 5 from the PSN?

Virtua Fighter 5 or Street Fighter 4

Super Street Fighter II Turbo: HD Remix.

I didn't play 4, but HD Remix plays very much like Street Fighter II Turbo on the SNES and I loved that, so I'm quite happy with it. It only costs like $15.

Other than that, I think your choices are Tekken, SoulCalibur, or Virtua Fighter

this is the complete list according to vgchartz that isn't on PSN
http://vgchartz.com/games/index.php?name=&console=PS3&region=All&developer=&publisher=&genre=Fighter&keyword=&boxart=Both&results=50&order=Hits

What's the matter with street fighter anyways?

If it's the difficulty, you will cry with king of fighters, so not that

I don't think tekken is that hard, so tekken 6 might be a good choice

There is also BlazBlue: Calamity Trigger, which I didn't mention the first time because I was positive it was coming to consoles. But I was just watching an interview on GameTrailers and the game's Designer said it was. It's a 2D fighter, like that of Guilty Gear. And is from the creators from Guilty Gear.

http://www.gametrailers.com/player/46404.html Gameplay montage

Virtua Fighter 5.

Deepest fighting game available.