R//L: Nice work buddy. Few small issues with yours I wanted to point out. Shuffles were slightly sloppy, not bad but just a little sloppy. The cuts I had a much bigger problem with - laymen may not know how gamblers cut cards, but they know that it definitely doesn't look like that! You need a cleaner, one cut move there. And on that note, it occurred to me that unlike a poker demonstration, where everyone knows or assumes correctly that aces are best, not everyone would know what blackjack hands are best. Just a thought. Also, make sure you display the hidden hand for longer - I tried to look at what the hand was 3 times, and thought it was a 19! Might also be a good idea to make note of the lucky sevens 777.
V_S: The lack of sound really hurt you buddy. I had no idea what was going on there. I still don't know what the effect you were trying to perform is. As far as I can see, it's cards magically turning face up. Which really has nothing to do with Aces. I mean, I know you're dealing yourself the Aces, but, well, the whole thing just doesn't make sense. Also, the pass wasn't good. This is a prime example of why knowing something has happened is just as bad as knowing exactly what happened. No flashing on the pass, but you could very clearly see that something had happened.
Vote went to R//L. A few more smaller problems in general, but at least the routine was there, the story made sense, and the effect was clear.