All of them or are some better than others?
They're all good.
127 first new people
132 first alpha
138 first alpha revealed name
144
I think Dante is in there but I forgot his first app.
Cool, which book had the first appearance of Alpha's daughter?
135 1st Full appearance of Lydia
I really think issues 131 (1st Darius), 133 (1st Lydia cameo (unnamed)) and 135 (1st full Lydia) have legs.
I might add 134 in there. Lydia does appear, has lines, get stabbed and captured by Jesus. All before her unmasking.
Whisperers - 130
Dante - 131
Darius is 133. He's the guy Jesus brought back after the Whisperers stabbed him.