Hello

These are some excellent picks for VFX

Probably the three I would've highlighted! I think any of these courses would set you up really well, so you're already very much on the right pathway. All three of these see great graduate outcomes.
(Obligatory "I did not go to or teach at any of these Universities", I am just a volunteer and this is my subject niche!

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Escape has been doing really well lately, I think they're doing some great things in the industry space. Some great connections, course content that is reviewed by people in industry and the quality of their facilities is clearly high. I know a lot of their graduates have gone to ILM. Also has the benefit of being well-located for lots of the main VFX hirers and industry events etc. The main thing is that you might have quite a different university experience to your peers at a smaller university/smaller campus with less societies and events etc, smaller student community. I'd say that doesn't necessary have to be a bad thing - some people enjoy a closer-knit environment. Worth keeping in mind if that is something important to you.
Bournemouth recently cut a lot of courses due to severe staff cuts, including some of their digital courses i.e. Games Programming. Which sucks, because I think they're a great university and I meet people all the time in the games industry who studied at Bournemouth (on VFX, game design, etc). So they certainly also have good graduate outcomes, but possibly right now is not the best time to start there - although as far as i'm aware, the VFX course was unaffected.
Herts is extremely well recognised for animation, have some brilliant facilities and would no-doubt set you up really well, as well as maybe offering a more typical university experience - also very near London (20 mins ish on the train).
I think particularly if you have some idea of how you might want to specialise in the future, Escape with their super specialised modules and course areas
could have some edge - but it's a little riskier (being a new university) and might mean you have quite a different university experience - it's a trade off. I think Herts is probably the "safer" pick and they are very evenly matched in terms of course quality. But I also think some risk is definitely worth it sometimes - really depends what sort of person you are!
Have you been to open days at all 3? What got you excited about each course?