I think the Byleth's waiting for a while until female finally won and the just released legendary Alear likely mean we won't see Alear winning this year. Male Alear probably has better chances but I still see him not. winning this year.
I personally would want any of Ivy, Veyle, Goldmary, Chloe, Hortensia, Yunaka and Celine to win. Wouldn't mind Zephia but her having a unit already probably hurts her chances more than Ivy having a version does just on popularity alone. My guess would be Ivy and Yunaka. Might personaly split votes between Goldmary and Ivy.
I could see Sigurd winning on the guys side since he is in Engage and did pretty decent recently. Don't really care fir the guys side though so pretty much my only thought of note for that side.