The green one is the best in my opinion, but there is more to think about before drinking monster. It kicks more than rockstar and redbull. It is usually enough to drink one of the other two in most cases. Monster is an extreme solution. Once I dropped in a shop to buy some drink and I got monster. I was so exhausted that I needed to drink something to get home. After I drank the monster can, I passed my home and went for a second night loop.