I took Biology at A Level 3 years ago. I'm assuming you did it for GCSE? It was a big step up compared to all of the other conversions from GSCE and A Level. If you enjoy it though and find that you can retain a lot of information regarding Biology then go for it! I loved the subject. -Edit- I should say that you need to know a lot for the exams when they come around.
As for the others, I only know through friends that Psychology has a lot of information that you need to know for the final exams.
Last edited by Frantic on Mon Aug 20, 2012 6:33 pm, edited 1 time in total.