My favourite depiction of Father Christmas is the comic book of that name by Raymond Briggs, from the 1970s, where he is depicted as rather grumpy and not at all pleased at having to go out and do his job, just like most people. I'd like to think of him having a drink of reindeer urine just to keep him going on his rounds.
Sadly out of print I think and my copy has been read over and over - I love that book. There are some pages from it illustrated in this article:
Every Day Is Like Wednesday: Some of Raymond Briggs' children's books, which are actually comics