this opinions are being done not having in mind my otp is blacksand, so lets just go with how I see them by themself
Oh well anon, by now most of you probably know that I don’t ship blackice, for one, I don’t really see that pairing working out fine, I mean, besides the fact taht Pitch can be a manipulative bastard (but you have seen my blacksand, I don’t think he can’t be a nice person), like once Gretch put it on one of her fics, Pitch has many problems and anger he really need help to fix and Jack himself has his own problems and I think it would be pretty impossible for him to help Pitch coping with that many centuries of issues the guy is dragging
that being said, Jack and Pitch as bros is hella funny
my situacion on winterwonderland is not like with blackice, but more that, I just dont see them developing a serious relationship ever, Sandy is old as dirt, Jack is basically a baby spirit on his eyes, this is sort of like having a crush on a really really REALLY older person, thinking of it is exciting but not all that simple or all-times-fun once in practicing. They could maybe fool around and everything but I see them not going really far from being bros, maybe a tiny bromance depending on the situacion, but nothing more besides that really, also, Sandy look more like that weird uncle of the family who takes Jack to weekend trips to do weird things but is pretty funny too
now, talking here only about Jack, I don’t see Jack romantically with anybody, not saying he can’t notice if soemone is flirting him or not or if he is asexual, just thinking his priority is about being friends with everybody and having a good time (sort of like Goku from Dragonball) I don’t have an special interes on either jackrabbit or rainbow snowcone, is a sort of a “sure okey” thing, now if white christmas was more of a thing, I could see myself shipping it, I mean, North and Jack, they totes could work, they fit on almost all the aspects to make a wonderful relationship work just perfect