Imagine, you know your prizes, mostly energy, but your luxray lvx is prized, and you need it to win the game. Is it unethical to pick the card that is bent the most because you know it is holographic?
Discuss.
In this scenario, if you were my opponent, I wouldn't care a whole lot. You said you KNOW your prizes? As in you used Time-Walk or something to see them... so obviously you already knew its in there. Even if you forgot, I wouldn't call you for it.
Now say you know your prizes just based on the inventory of your deck, that's a different story. I draw my prizes mostly in order, like most players, unless I used Time-Walk or I'm playing Gardevoir & Gallade or something like that. When I'm under pressure though, and I know somethings prized that I need next turn but I haven't SEEN my prizes through a game effect, I DO pick something out of order because I'm afraid I'll jinx myself by drawing the next available one. That's me though, haha.
This is a somewhat unavoidable situation in certain areas. If you KNOW what your prize is without looking at them, and either draw prizes out of order all the time or you do stuff like I do when under pressure... I dunno. I mean, it's kinda hard to say "don't cheat" when you know what card it is. Sorta like if you drew an extra card on accident (Let's say in a fun game or something)... you may play your turn differently depending on that next card. You can be like... "don't cheat," and play it like you WOULD have, but it doesn't sit well that you're tossing the game. And you'll be left with "what ifs" and such. Tough call =/
This is why it's annoying to have reverse holos and these new league holos. I've seen players play their entire deck un-holo EXCEPT for their Claydol line, Azelf, and Uxie for this very reason you bring up.
What I would do: With Azelf unavailable, it personally wouldn't sit well with my conscience that I won a game like that, so I would draw the next available prize regardless. If a Judge or my opponent hasn't said anything to me, I wouldn't feel bad beyond that. I do deck checks when available just in case something is out of order, I don't want my opponent to be uncomfortable about how my deck looks even if I don't notice it.