French AB or Spanish B

[empire]

I have been learning spanish from the last 7 years and still find it very hard , the grammar is the hardest for me . I have to decide next year what language ill take my options are Spanish B and French AB . I have never studied french before and have a fear that I may get it confused with spanish . The average grades for French AB is about 4.8 whereas Spanish B is 5.7 (according to our coordinator) But I heard getting even close to a 5 or 6 in spanish is extremely tough. If anyone has taken french AB or spanish B please advise..