Of those, I'd say she only appears extensively in ST where she is dead. She certainly appears in SS, but not to an extent that I'd consider her significant. In TWW she has about as much total screen time as Link's grandmother, and in OoT she just... really isn't there.
I'd love for Zelda to finally be a main character in the series that has used her name in every title while simultaneously treating her like an afterthought. Heck, ditch Link and promote her to a character of importance.