There are some actors that perfectly nail the characters they portray. Christopher Reeve (and earlier George Reeves) as Superman; Robert Downey Jr. as Iron Man, and Adam West as Batman.
It is hard to play a fictional character that is legendary and that everyone has their own take on. While he was 'typecast" afterward, Mr. West...if he had been in physical shape to do so and played Batman as he was really designed to be, would have surpassed the standard. But even in the campy version, he demonstrated the character's potential on screen. Something to be proud of.
On Batman TAS in the 90's, he played the voice of Batman's childhood hero...the Gray Ghost. The portrayal there was not only biographical in many ways, but sad and chilling in others. Mr. West was underestimated, but was unmistakable in his talent. There are no more like him, I fear.