Hi Hollie,
Fabulous! Well done! Congratulations!
My personal preference is Cambridge, however, remember you have to be studying there for at least 5 years, so you need to be able to feel comfortable, stimulated, and inspired to be there everyday - and also taking into account that the course itself where ever you go is going to be highly stressful - so, an environment where you feel you're going to be able to relax will be good too.
Hope this helps,
[And Well Done, again !]
Jenny.