I can recommend Hal Leonard's Christmas Ukulele Fakebook, as it has so very many songs and hymns old and new. The chords aren't dumbed-down so if you're beginner/intermediate (as I was when I bought it) you'll find plenty there to stretch you. I bought mine on Google Play Books, so I can access it from my PC, phone, tablet, whatever.
I tend not to buy books now though, as it's easy to buy the songs I need from sheetmusicdirect.com (a Hal Leonard site). Having said that, to buy all the songs in the Christmas Fake Book individually would cost an arm and a leg, so I still heartily recommend the book.
Jim Beloff's Daily Ukulele books are likewise great value. I was given the paper copy of one as a present and bought the other electronically. Some of the arrangements I think are a little simplified for beginners/learners, which is an observation not a criticism. I've not seen an arrangement of Fairport Convention's 'Ukulele' anywhere other than here (I can't remember which one off hand).
I've not tried the Hamilton or Disney books.