ok... i havnt made myself clear, maybe i should say, 'What I think is that', all the links are the hero of time, not because he can go through time, but because all over the history of hyrule, he pops up to stop evil from destroying, or ruling the world. Saavy?
Regardless of what you think and why you think it, it's wrong. The only Hero of Time is OoT Link and only Adult OoT Link. Notice how in WW (the AT) they refer to the previous hero as the hero of time, but no where else in the entire series is the Hero of Time mentioned? It's because he is the only hero of time because, get this, he traveled through time a lot during the events of OoT. The only other games that involve time travel are MM (which is the same Link as OoT Link) and OoA (which he is never called the Hero of Time in).
He has had other titles throughout the series. In WW, Link is called the Hero of Winds. Only one Link has ever been called the Hero of Time and the only other game to reference the Hero of Time talks about the same Link that was called the Hero of Time. You are wrong, end of story.