OP i think you're comparing apples to oranges. A kid's drink next to an adult's drink.
I've never had the Beverly stuff. After googling it, it sounds reasonable, but definitely not in for a six-packs' worth.
The OG Crystal Pepsi literally just tasted like regular Pepsi. Same flavor, same smell, same mouthfeel. People have been disagreeing with me on this since that fateful year of 1993, and all of these people have been wrong. They insist that there was something just a little different about it - missing the entire point of the gimmick. "Dude, check out this Pepsi, you can see through it!" "Whoa, dude, it looks like Sprite but it tastes like Pepsi!"