Ah-hah. Sorry. I never made a page because no one ever asked before. I'll make this one now and link it on my main page.
There are multiple sheiks because at one point I made a joke about it an it just kinda stuck.
For the purposes of this blog, none of them are Zelda. I treat them all as if they were their own person and made a blog canon about why normal Sheik is not Zelda in disguise.
1) Original game Sheik and original to this blog. He's the one I generally answer with and yes, I've made him a he. Without getting into debate, if Sheik were his own person he would be male. Moving on.
2) I made a joke about how people over-sexualize Female Sheik with huge breasts and long flowing hair and so she was born. She was the joke that started it all. Because of this she's very curvacious and busty and proud of her femininity. However she can still kick your ass even if she's now wearing heals. I love her to death.
3) This is the result on me jumping on the "everyone has a shadow version" bandwagon. He's Shadow Sheik. The same post that describes my blog-canon also shows his origin. He's the bitterness of Sheik's forced allegiance.
4) This is the Sheik from Smash Bros Brawl and this Sheik is female. ... That's all I've really got on her. She's rather stoic and down to business.
5) This is the original Sheik as a kid. He's somewhere between 8 and 12. Idk. He's rather mature for his age but would very much like to act like a kid if he could get away with it.
Hope that helps. If you have any more questions about any given Shiek feel free to ask THEM about it. Just post their name, Fem, Kid, Shadow, Twilight or just normal Sheik and I'll answer with that Sheik.
if you don't specify I will pick whichever one I think suits the question.
Any questions referring to Sheik-is-Zelda or trying to start a fight are ignored.