I have 6 converted fixed weeks - that is $495.56 per year in CWP fees.
Now, 2 of those weeks are usable for me as FIXED weeks - but they are the same week at the same resort. And the ratio $4.68MF per 1K in points -- low -- so I will keep them yearly in points to use. With inclusive costs of under $5 per 1K of points --- I will use the points.
The other 2 have lousy ratios - $6.99MF per 1K in points - but one week can be rented, but the other is a DOG. But if in points I can sell them as a "bundle" as they are back to back weeks in the same size unit (week 51 & 52) ... more potential buyers in points.
The other 2, I regularly moan that I should just drop them out of points and save $160 yearly CWP fee.
You have to figure what is to your advantage...