I went Pike, Chapel, & Una.
The first two were easy. Mount is doing a fantastic job and the whole fate v self-determination thread of his character (with Una putting her hands on the scales) is very well done.
Chapel's development has been fantasic as has been the development of the Spock/Chapel dynamic hinted at in TOS' "Naked Time." Jess is killing it.
Spock seems an obvious choice for #3, but I resisted picking him for a number of reasons. I did not want to choose another TOS character. And I just think he always gets picked. The work Peck has done on SNW & DISCO has been fantastic. The Spock/T'Prung & Spock/Chapel relationships well done. As with Spock/Pike. I just didn't want teo TOS characters.
In retrospect, I should have gone with La'an, as that would have given me an original SNW character, a Cage character, and a TOS. But I went with Una instead. When I rewatched, "Ghosts of Illyria" really grew on me. Una & La'an playing Enterprise bingo was hillarious.
Hemmer, Ortegas, Uhura, & M'Benga are all well done as well.