I'm in the process of moving my BBC pension now. I suppose only time will tell if I've made the right decision. I spent maybe 4 months looking into all the pros and cons, and speaking to people with QROPS pensions in the country I'm going to retire to, and it seems the pros far exceed the cons.
With companies changing pension rules whenever it suits them, and always to the detriment of the individual, I'm happy to get out before anything else changes.