If you guys have read the synopsis for ep 23
, it is obvious that SK & Co is trying to convince us that Alto would go for Sheryl. However, as mentioned by Wolf-X, this show has always turn around our expectations, so it could be Ranka ending up with Alto (although I am rooting for Sheryl).
On the other hand, statically in other Macross series, the older female would get the male protagonist :-
Misa vs Minmay, Misa ended up with Hikaru
Sara vs. Mao, Sara ended up with Shin
Sheryl vs. Ranka, Sheryl would end with Alto ?