Is there a "book by" date for current OSL SYD fares? It's at 2,080 ish at the moment which is about 200 cheaper than it has been before so was just wondering if it needs to be booked by a certain date?

also, slight dilemma (and I know it's not strictly speaking TP related but you guys are "family" here and KARFA is very helpful too): BA F to SYD or QR J via DOH and HKG on way out (HKG SYD with CX which I found excellent in J earlier this year) and SIN DOH (thus new 350) on way back? I've read all the is QR J as good as BA F etc. for me, it feels like QR is more exciting and "fun" with 3 l/h's on a good mix of a/c etc though BA F will just earn more TPs (980 vs 840) and tons of Avios more (QR only earns 27k - BA probably 50k more). BA option would be £200 ish more than QR.

Thoughts? I know the answer is and should be BA F bit as said, QR feels more exciting?