The first thing to remember is that we are all different and what is suitable for some does not suit other due to taste/life style/convenience/out body.
Some people find a liquid such as fruit juice or soda or Lucozade.
Some people find something solid such as fruit pastilles or jelly babies easier to carry around.
I find sweets are too tempting to people without diabetes and they melt if I leave them in the car
Dextrose is common.
I prefer Lift tablets because they come in plastic (reusable) tubes.
Some people don't like the chalky texture.
So, to answer your question: for some Lucozade is a good hypo treatment (although since the recent sugar tax it has less sugar than it did 5 years ago) and others prefer other treatments for hypos.
It is best to find what works for you and like many things related to diabetes, this may take some trial.