Yes, I have compared the two boards and both are good. It's all down to personal preference, just keep in mind that both Korg & Roland do not bring out replacement models every 5 minutes. In fact Roland have released V2 G70 which is a free download update plus you can purchase a optional plug-in board containing new styles & samples if required.
We have just returned from the Caister Keyboard Festival UK and for me the best board there was the Korg PA1X followed by Rolands G70. The best value keyboard being Korg PA50 at only £699.