Feel free to post your own verdicts.
I have thought of this list for a long time, and wished to post this for the benefit of other users.
Note this is paper 1 only.
OCR BREADTH (OUT OF 70)
A 53
B 46
C 40
D 34
E 28
U 0
AQA CHEM1 (OUT OF 70)
A 55
B 48
C 42
D 34
E 28
U 0
EDEXCEL PAPER 1 [8CH0/01? - CORRECT IF MISTAKEN] (OUT OF 80)
A 60
B 53
C 47
D 41
E 35
U 0
ALL THESE ARE BASED ON SKEWS OF GRADE BOUNDARIES OVER PREVIOUS SERIES. PLEASE DO NOT TAKE THESE AS CONCRETE.
THEY SHOULD BE LOWER AS TO NEWER SPECIFICATIONS BUT DO NOT CONSULT THIS MATTER UNTIL BOUNDARIES ARE PUBLISHED AFTER THE EXAMS.
Good luck!
Nwmyname.