Between mid-Jan and the end of Sep, you can easily get BLT lake view at 7 months out and usually theme park view. Standard view is seldom open any time of year at 7 months out. From end of Sept to the end of Marathon weekend in Jan, anything at BLT can be difficult, although 1BRs are sometimes available when nothing else is, and first two weeks of Dec and Christmas week you can just write off as near impossible absent wait list. Thus, if you want BLT in that last quarter of the year, or you want standard view at any time, you should own there.
Not sure of your "desired" use year or why only one is desired. Use year does not determine when you can go (any time) or when you can call to reserve (always 11 months out at home resort, 7 at others). Many recommend a use year that begins shortly before you usually go but that has to do with the issue of possibly having to cancel a reservation and then being able to bank points that were in the reservation before the deadline -- by end of eighth month of your use year. Just note that you are easily saved from that problem by any use year that starts any month during the six month period before the time you usually go annually.
I am guessing most on sale are Feb use years. That is a quirk of how BLT was sold. It was on sale starting about 10 months before it opened in Aug 2009 and for almost 7 months the lead month being sold to new purchasers was Feb.