Flying in October from NYC->BKK. Job will let me go biz if the bill is below a certain threshold and i'm trying to figure out which is the best option. This is my first real long-haul work trip.

I can take:
Finnair
Air China
Eva Air
Asiana
Air India
Turkish
China Eastern

I'm leaning towards Asiana or Turkish. Finnair is by far the cheapest but involves a 20 hour layover on the way home.

Any suggestions? Can I earn Delta miles on any of these?