It is definitely a personal preference thing! They are all great options but it depends on a variety of factors in my opinion.
1: Have you visited them all? Which did you just like the look of?
2: What grades do you need for glasgow and hw and do you think you will get them? As the unconditional is amazing as it is a guarantee and takes a hell of a lot of pressure off of you however it will then take a more self discipline to motivate you to still study.
3: are they all the exact same course? It is always worth having a look at what modules they offer and what you think you will enjoy studying in the end.
4: Look at the accommodations they offer and see the price of living etc. and where you would prefer to live.
In the end don't let anyone say this one is better or that one is better as it is your own future and you have to go with your own gut feeling. Nobody else will be able to tell you what you will enjoy more other than yourself. Hope this helps and good luck! 🙃