I don't advise against London per se, it's just that some of the best courses in the UK for music production are outside of London.
The advantages of a conservatoire/music college over and above a normal university is usually that conservatoires/music colleges are usually more practical, industry focused courses whereas a normal university will be more academic. However universities such as Salford & Huddersfield have industry focused practical courses so you may wish to add those to your shortlist.
The best place in Europe is the Surrey University Tonnmeister course, however their entry requirements are very specific (UK students have to have studies A level Physics, Music & Maths,similar to AP in those subjects) and you won't be able to transfer into 2nd year.