I think it was only in 2007 he won it.
The award should be called 'Old Firm Player of the Season', because no other player is even seriously considered.
The media is so Old Firm biased it is unreal.
You have to consider how much harder it is for non-Old Firm players to look good week in week out. I could name players from Old Firm players for various years recently who would have been worthy winners, but they never had a chance to win an award.
Recently, Berra (formerly Hearts, now Wolves), Robson (then Dundee Utd, now Celtic) and Anderson (then Aberdeen, now Sunderland) all deserved it at some point.