We're most likely going to do OCR A. Mostly because that's what we're doing now and there isn't really much reason (that we can see) to swap - Ofqual have pretty much homogenised the options. Salters and Edexcel are too practical heavy for our students, which left AQA (or go crazeee and consider Pre U - but we don't have good memories of 1950s education).
What exam board are you planning on doing next year? and why?