Unless someone else drops a part before the end of the year, I think it would have to go to Mariah at this point. 2 really sick parts, gnarly footy in the Thrasher Vacation vid, coverage in the mag, etc. An argument could also be made for Nicole for sure, her part was crazy plus Dime Glory Challenge stuff. Lizzie's had several parts this year too plus a shoe but it's been a long time since Thrasher gave SOTY to a strictly transition skater.
Other notable mentions that have had dope street footage this year: Alexis's Alltimers stuff, Vitoria Mendoza's "For Us All" and Element video footy, Nelly Morville in Limosine's Paymaster, and then Nora, Maite, and Sam Navarez have had cool stuff in some Adidas edits (plus Nora got a shoe)
Funa and Rayssa both had bangers down Hollywood High but otherwise have essentially released no street footage and I'm applying the same standards here that we do to the traditional SOTY contest so I don't think either of them really deserve it unless they drop something else before the end of the year. Really looking forward to seeing more street footage from them.