I own 15500 points in the West club. We mostly stay in Napa, San Francisco (3 resorts) and San Diego. Suites at Fisherman's Wharf books up the quickest of the 3 SF resorts. However, I think with just a little flexibility you should not have any problems booking West resorts at 6 to 9 months.
I think the Hawaii resorts need the most lead time.
Here is the point chart for Little Sweden.
View attachment 5978
I just booked a week at the Sunset Plaza Resort in late October (so about 8 months out) and no problem getting the exact days I wanted. You have to call for Sunset Plaza but I also checked online for Plaza Pelicanos and it had pretty good availability around that time as well.
I'm happy to answer any questions I missed. I will admit that my experience w Hawaii is limited although we sent my niece there on her honeymoon and didn't have any issues booking it.