The last Rugby Challenge game that I bought was RC2. I didn't get RC3 on release cos the general consensus seemed to be that it wasn't a huge improvement on RC2. My intention was to hold out and wait for RC4. How much 'better' is RC4 compared to RC2/RC3? The last rugby game I bought was Rugby 20......which I found rather underwhelming. Should I fork out for RC4......or a second hand RC3?