Zelda by a long shot, though I love Zelda anyway. (I'd even go ahead and say it's my favourite Zelda game, yep even better than OoT *hides* )
I'll be honest, but compared with other shooters I've played in my time, Red Steel was FAR from outstanding. I just feel the controls were a bit naff and the sword fights were nothing special either.
I've just stopped playing it, because I can honestly say I didn't enjoy it all that much...sorry...