Best....
(1) George C. Scott. Great actor, great peformance.
(2) Alstair Sim... same as (1), except Sim got caught up in a little overacting in a few scenes.
(3) Kelsey Grammar.... Just another example of the versatility of a great performer, Whether it is Frasier, Ebeneezer, or the the Boss.
The worst??.....
(1) Any of the saccharin Halmark TV versions
(2) Patrick Stewart.. Too typecast as a starship captain to be taken seriously. Is it me, but anything by Stewart that isn't ST, is treated like a Shakespearen blowvata.
(3) Bill Murray. Role corresponded to the time of the steep career decline of what was a great comedic actor.
I cant't get past Patrick Stewart's America hating stance to enjoy anything he does!!
I would say it was the start of his commercially successful film decline. He has done quite a few fine indie films, and is still a great comedic actor.