Well, I am not a nutritional expert. But I have done some study. Generally, there is no difference. Calories are calories.
Whether you get them from carbs (starches and sugars) or proteins (meats eggs, beans, etc) or fats and oils(lipids) it really does not matter for a normal person.
Liquids are fine. Cocoa is not all sugars. Oils, minerals, salts and other things are also in it. So, it isn't a good idea to drink 3 liters of cocoa. Or anything, really (except BEER.) Gatoraid is something that I would recommend you avoid. Or, dilute it about 2-4 parts water to 1 part gatoraid. Really great for heavy workouts, heavy exertion in high heat, but not real good for hiking. Hiking is more long term endurance...8-12 hours of moderate energy output adding up to a large output at the end of a day. Not 3-4 hours of heavy workout. If you are climbing in high heat, sure. But, use common sense.
Your body doesn't really care where it gets energy from. In the blood, it is just the molecules that are important. Extra Glucose/Dextrose gets stored in your liver as a starch. This gets reconverted to sugar as needed. Oatmeal gets converted to sugars for transport to your liver. Anyway, skipping the HS biology, over 24 hours, it really doesn't matter where you get the energy molecules from. Drink, or solid food. I am ignoring a LOT of other things...long term effects of not chewing for example.