ABBC >> A*AA (high A's too)
I was pretty chuffed, but I took essay subjects which I think is a natural progression as your style improves through maturity. (That's what I credit, anyhow!) Work is definitely required though, I should add. If you don't get the AS grades you want, it can pose new problems for resits you wish you didn't have to devote time to again, but ultimately it can be done.
Although I do know people who did worse the second year...