Which actor played their part better in the movie ?!

Which actor played their part better in the movie ?

jack nicholson in the shining

or


al pacino in the godfather

I think Nicholson had a tougher role and did a great job making a memorable performance that people will never forget. Pacino was good but the role didn't have as much to make him stand out like Jack did.

So being that they are such different roles and so on it's a hard comparison to make fairly. I think they both did their jobs well but I have to side with Jack on this one.