[Ginkasa]

There's not a different Link or Zelda in EVERY game, but most of them. It was the same Link in LoZ and AoL, but different Zeldas. Same Link in ALttP and LA. Same Link and Zelda (for her short cameo) in OoT and MM. Same Link and Zelda in OoA and OoS. Same Link and Zelda in the FS games.

Same Link, possibly same Zelda, in WW and Zelda GCN? It would make sense. It follows the "two game"procedure that Nintendo seems to be following.

And the whole thing about the people being called the same thing depends on whether you believe in a complete storyline or not. If you do, its because of either

A) Destiny (all the heros and princesses that have to deal with Ganon [who is the same guy] are called Link and Zelda)
B) When the original Zelda was put in an enternal sleep (not death, since it could be lifted as shown in AoL), the prince at that time (she had a brother!) decreed that the daughters (at least the first daughters) born in the royal family would be called Zelda.
C) Continuity

Or, if you think the series is like Final Fantasy with no overall storyline:

Just C.


*shrugs and walks away*