Originally Posted by
Keyser
not necessarily....i end up taking 50+ flights on 9w every year but i always credit those flights to dl....it helps me maintain my dl diamond status which means a lot more to me than getting platinum status with 9w....the downside is that i don't get any elite benefits when flying 9w but i am mostly flying in business class so it doesn't matter anyway....
I am sure that this is a good choice for your circumstances. You have also stated that 9W status is not important to you. Perhaps because you are already flying J, possibly because many of these are short domestic flights. BTW, I am surprised that 9W flights help with DL status as they are not alliance partners (as a OW person, I don't know much about DL or SkyTeam or their procedures).
OP's question was about OW. I don't know of any comparable opportunity for him. In general I would recommend earning status on whichever carrier he would actually fly most
long-haul miles. Short ones matter less.