A) He either meant pilot/NFO selection is made well before platform selection, or that pilot is better than everything, which is how I've seen >>>>> used on Twitter. But it's probably the former.
2) I'd imagine you wouldn't be picking tailhook when you get to selection, they're currently trying to split it into jets and E-2/C-2, so you'd pick from one of four options: helicopters; multi-engine/maritime (P-3s, P-8s, and E-6Bs); jets (F-A/18 and EA-18G); or E-2/C-2.
D) Bust your ass in Primary. API, ehhhh, not so much. I've been told it counts for very little in terms of NSS (like the equivalent of half an event in Primary). Do well enough to pass, but don't burn out on it.