The proper order may be 5-1(3)-4-2. Here is my proof:
1. None of the Zeldas (except 1 and 2) have official numbers and it was stated that Z5 is a prequel to all the others.
2. If there is only one Ganon, and he is banished into the Dark World in Ocarina of Time, then Zelda 1 and A Link to the Past (Z3) are essentially the same story since if there is only 1 Ganon, he is killed in both Z1 and Z3. (A person dies only once, then stays dead, usually)
3. Link's Awakening must occur after Z1(Z3). The Z4 manual
states that after Ganon's destruction, peace reigned. A quote
from the Z4 manual:
"Though you fulfilled the Hyrulian prophecy of the Legendary Hero and destroyed the evil Ganon, the land of Hyrule enjoyed only a precarious peace. 'Who knows what threats may arise from Ganon's ashes?'..."
This quote proves that Ganon is dead. (Unless a person can be ash and not dead). Link also made the sea voyage before Ganon's ashes caused any sort of trouble.
4.Link's Awakening must occur before Z2 (Link's Adventure).
Some quotes from the Z2 manual:
a) "At the end of a fierce fight, Link overthrew Ganon, took back the Triforce and rescued Princess Zelda. However, is it all really finished?"
b) "Many seasons have passed since then."
c) "Ganon would be revived by sacrificing Link and sprinkling his blood on the ashes of Ganon."My points. Ganon is dead. Which means Z2 is the last section of the series. Many seasons passed. As pointed out in reason #3, Link went on the sea voyage before any trouble arose from Ganon's ashes. Which means Z4 occured after Ganon's death but before his attempted ressurection, therefore Z4 occurs before Z2.----
Ice: VERY nice compilation of important information. Great job!