Degrees and A-Levels grades are quite different.
I have just completed my degree in BA(hons) Business Management + IT with 2:1.
It depends on the course how difficult a degree is. For example, economics is very boring and complex (especailly the ethnics side) as is med. Whereas mine was a lot more pratical based looking at real-life situations, which could be backed with numerous articles.
I kind of went through clearing for uni, because i wasn't planning on getting to university with my grades, which were:
Physics: E
Electronics: E
AS Computing: B
AS Business: N
AS Maths: U
Not the best as you can see, I hadn't even applied to UCAS, yet ended up at the University of Hull. (Saved myself that stupid admin fee and alot of time applying)
I am now going on to do a MA at University of Leeds.
My friends got A's at A-level and came out with 2:2. So as you can see further education and higher education differ a far bit.