Naismith springs to mind
Naismith had his limitations as a footballer, but he was a constant pain in the arse to the opposition and would get himself into some very good positions to score goals. With the right striker in front of him, he was a very useful player. He also had that little bit of controlled nastiness in him, which is always a bonus.
Off the field, he seemed to be a proper top bloke, with all of his work that he would do for homeless charities etc.