I found AS OCR Psychology really good - the exams were very straightforward and it was easy to revise - just 20 studies (sounds a lot but it's not really!)
A2 I don;t think is as good - at the beginning of the course I found it interesting, but towards the end I got fed up. I do Crime and Education. Education is alright because a lot of it I've learnt already in my A Level PE course, but Crie I'm not too keen on. Some of the studies are alright, but the majority of it is just theory with no support, making it hard to revise a good study.