Honestly, I haven't tried any 'Energy' drinks. I figure if the rare cup of tea or coffee when I'm tired isn't enough, well then, I NEED to sleep. Yes, I used to drink FAT to much Mtn Dew, but gave it up a long time ago and haven't bothered with it or other stuff since.
I've been on 0mg of caffeine for a while but sometimes I miss the taste of some energy drinks.
My top picks would be:
Sugar free Redbull. Best of the best. The liquid reminds me of gasoline in the best way possible. I love their racing liveries.
Ultra Strawberry Dreams Monster. It's one of the best drinks I've ever drank, I'd still rank it lower than milk or water but it's close.
Arctic Vibe Celsius. Anything "berry" flavoured hits my sweet spot. This drink nails it.
But also Rockstar Sour Rasberry, Monster Ultra Watermelon and Lipovitan D (a concentrate to mix with water, but can also used pure. The best after a night without or just a bit sleep)
I'm afraid getting kidney stone. You would feel pain like you never felt before. Mineral water close on sight is enough for me. Dehydration your body failed to realized is also not good on your skin and ability to focus. Also diabetes.