It's a good shout Mike, but I decided to restrict myself to squad number era only. Otherwise I'd have run out at day 14!
Today's window is a personal favourite of mine. As Villa fans we seem to have a natural affinity to strikers and central defenders, those being positions where we've had the most talent. For cult heroes though, it's hard to see past one of the sweatiest players to wear the shirt. A man who never gave in, would sweat blood for the badge, and sadly succumbed to that awful injury.
Your advent number 3 is Freddie Bouma -
Honourable mentions to Steve Staunton and Alan Wright.
Dishonourable mention to Joe Bennett, who was always willing but just couldn't live up to his predecessors in the number 3 shirt.