I would suggest writing out what each university offers in bullet points, such as; societies, student support, local life, course specifics, accommodation and anything else that is important for you. This can help you see which uni would be more suitable for you and how you can get the support you need throughout your academic career and life in general at university. (I did this when I was trying to narrow down my choices when applying, and it really helped)
If you can, I would also suggest going to decision days and getting a feel for the campus and course subject. This can help you feel more confident in your choice 🙂