I think how you do in a language alevel depends a lot on the teacher. Last year I had one of the best- if not the best- language teacher ever. I did as-level last year and I got an A however things aren't looking too good now as my teacher this year isn't as great. We do OCR here at LAE, and let me just tell you it is hard!
Also, have you considered other sixth forms? LAE isn't in the most stable shape right now and it's future looks bleak, soooo many teachers have come and gone in the last 2 years it's been open, including the headteacher and the deputy headteacher.