Hey there! I've been to NTU, NUA and AUB and had a chance to look around the unis and cities.
I personally love Bournemouth and applied to both BU for 3D and AUB for 2D. The beach is gorgeous (I grew up by the sea so I'm drawn to staying near it!), there seem to be quite a few nice restaurants and cafes without being too expensive, the botanical gardens are nice and there are a few clubs used by BU and AUB as far as I know. Since it has 2 quite big unis in it I think it's quite a student-orientated town.
I really liked Norwich when I went there; the city is pretty, it has a good creative scene and a few alternative clubs or venues as far as I know which appealed to me, but unfortunately the course and uni itself left a bit to be desired. I got a tour of the facilities from an illustration student who had nothing but bad things to say about NUA as a whole + told me her animation student flatmate dropped out because she didn't enjoy it. These are just two cases out of hundreds and it's different for everyone, but it was my only impression I was given so it put me off.
I went for my interview at NTU yesterday! I got the offer in the interview and was pretty impressed with their facilities, but something about the location and university itself put me off. I was trying to figure out what gave me such a bad feeling, and I realised because the university and city are SO huge (what with University of Nottingham also being there) it felt very... lonely. My parents also commented when we got home saying how easy it would be to feel alone or overwhelmed in such a huge place with so many people.
Overall you've got three good locations, it just depends on which one appeals to you personally. BUT remember the most important thing should be the course itself!
AUB - Well-established, creative skillset/screenskills accredited, mostly 2D but also 3D and stop-motion.
NUA - 2D, 3D, stop-motion, not accredited but looks like a fun course imo
NTU - VERY new course (they've only just graduated their first ever lot of third years), not accredited - one thing I was told by one of the course leaders yesterday was that they really don't want to teach you story-telling/writing for animation, they focus solely on giving you the skills to tell your own or pre-existing stories. (Some third years just animated kids books for their thesis)
What I suggest you do is look at the showreels on each course page and decide; is that the level of skill you want to have achieved by the end of your degree?
THEN look at the location. I don't know about EH but I do know that Norwich, Nottingham and Bournemouth will all have your basic necessities like transport, cafes, clubs, fast food, which I think is all you need personally ;^)