Hi, I did Graphic Design and Art as an a level and wasn't sure which path to take in the art and design industry, I did very well on both but my teachers told me to take on a foundation course.
There are advantages to taking a foundation:
1) You have SO much more of a chance to get into a good BA course because you have a varied and better portfolio - my a level one looking back makes me cringe
2) You sometimes find that you're actually better and like doing something else rather than what you thought you would be (I know people in my foundation who wanted to go into art but ended up having a real knack for product design)
I went to do the UAL Chelsea, Camberwell and Wimbledon foundation and can honestly say that the year was by far so worth it. Yes, I thought it would be a waste too like you - but its not. Its a great advantage to have a foundation where you've specialised in graphic design - its not the same as what you do in a National Diploma or A-level - you don't see it as just image, image or how something looks in general, it's more about what something is communicating and that lesson was so worth learning because my portfolio was pretty good and I got into all of my choices for BA graphic design (LCC, Chelsea, Falmouth, NUCA and Camberwell).
The only thing I'm going to say s the type of graphic design you're into, if you're just thinking of graphic design in the A level way 'ooh lets put this in blue because it goes nice with the the background' instead of 'actually no lets put this is red, bold capital letters because it's a warning sign' then you're going to need to do foundation.
I know some unis like different things. The UAL unis I applied for + Falmouth like conceptual stuff, mainly ideas, brainstorming, reasons WHY you're putting type in red, why the image is smaller in comparison to the other image etc... They like you being clever. Norwich however, I found, didn't actually get my conceptual approach, they said my work was weird. I gathered that they were more into how something looked rather it communication - they are more diverse in what graphic design is aswell - I know they like animation and film whereas I prefer more print and 3-D model-making (again not knowing that you can use 3-d as graphic design means that you don't really know what you're getting yourself into and they ask you these sorts of things (i.e what materials do you like using - 3D/2D? in interviews)
Anyhow, I chose going to Falmouth over UAL. This was a surprise to my other friends in my UAL foundation because UAL has amazing reputation. Tbh though, UAL is not all that, it relies heavily on reputation. In all of UAL, Chelsea I think has the best graphic design course, but again they all have different approaches. Chelsea = for conceptuals, small course, very good, very nice area. Camberwell = easier to get into, still good little bit bigger, not good area
LCC = recently a new course has started - don't know what its like meant to be good, pretty big course, not good area.
CSM = for independants only, if you can't cope without have someone to guide you along then not good for you as little tutor time, tbh i think its a bit overrated which is why i didnt apply but its up to you, i would say you need to be very independant though, big course, nice area
I would recommend to do your foundation at your local college, any foundaton is just as good as the ones in London. However, if you want to go to UAL for a degree for certain, do a foundation at one of the UALs as you have better chance of getting into them as you are guaranteed an interview. If you don't do a foundation, you can still get in, however, your chances are minimal and your work has to be up to par as you are competing with candidates who have done one, or candidates who have missed out on year before and applying again.
Other unis I would recommend other than mentioned are definitely Glasgow and Edinburgh, both are amazingly good but both favour towards those who have done a foundation at their unis and are quite hard to get in.
Brighton - very good, nice area, particularly if you're into designing album covers. Their work is very good, however you have to be pretty good to get in and there are so many candidates with little amount of places, plus they can reject you just based on your online portfolio, the interviews there are also ask about you rather than your work, for example a girl in my foundation got asked 'What do you think of Scottish independence?' Another 'What object would you be and why?' also 'What question did you not want us to ask?' Infact one of the guys who got in, I didn't think was very good so it's a bit unpredictable I guess.
Others:
Bournemouth (not sure which one because there's two), UCA Epsom, Portsmouth, Plymouth, UCLAN, Northumbria, Bath Spa, Leeds, Kingston, Middlesex, Salford, Sheffield Hallam, New Bucks, Ravensbourne (forgot about this one - amazing for those who are computer orientated/digital)
Thats mostly the good ones - however if you want some more go on the D&AD website look at the competition winners at where they've come from, all those are good universities to consider - most are the ones above though.
Anyway, I'm off to Falmouth, they seemed so nice in my interview, offering me advice about my work and the standard is so high - take a look at the website and compare to other unis, 120 starting this September - it is ages away (I come from near London) but it's so peaceful, it's the opposite of London makes me feel I can do my work at my own pace without all of that headache of all that fast paced lifestyle.