The problem is the ones that first come to mind are everyone else's favourites (The Christmas Sweater, Log-Driver's Waltz, The Cat Came Back). So my fave that isn't any of those is probably Blackfly, because growing up my dad would always sing that old song and it makes me think of him!
Sorry to hijack this ask, Misty, but I'm a huge NFB fan so I am going to beg all y'all to please watch Mindscape
The whole film was made with pinscreen animation where you literally push pins partway into a board that looks like this
and the visual effects Drouin is able to pull out of that medium are flabbergasting.
If the nfb has 1,000,000 fans I'm one of them.
If the nfb has 10 fans I'm one of them.
If the nfb has 1 fan that's me.
If the nfb has 0 fans I'M DEAD