I'm not too experienced with this kind of thing but keep in mind that Christmas is coming up in a few months and so a santa might be a good investment as it is relatively cheap and will most likely rise!
santa i have 1... mask is ugly even though it is a rare its just ehhh lol idk how to explain people like the santa for the looks, if i was to get a mask i would never even wear it :/
Short term: no way to tell
Long term: They both will go up, most likely at the same rate. So choose blue h'ween for long term as you will get more profit and it is 100x sexier than santa.