There are basically three F configurations on EK's 77Ws at the moment.
1. The 'new' Gamechanger suite with floor to ceiling doors, zero G and virtual windows. How to spot: does your plane have 6 seats in F?
2. The refurbished 'old' F suite. How to spot: does your plane have 8 seats in F, 1-2-1 in business and premium economy available?
3. The unrefurbished 'old' F suite. How to spot: does your plane have 8 seats in F and 2-3-2 in business.
As for the points value, F is F (and Qantas doesn't charge a premium anyway). Savour it because it's brilliant. I appreciate that if you haven't had a shower, visited the bar or tried GC, these may all swing the decision though. If you want to do more complex routings, then you have to work out if the extra faffing is worth it to you (unless EK flies both A380s and 77Ws to your destination and you can choose a reward on either aircraft).
My upcoming flight from DXB to SEA is onboard a refurbished 77W (with SYD-DXB on an unrefurbished A380). As I want to end up in SEA, it made the most sense. While I could have flown SYD-DXB-ORD (to get Gamechanger) or SYD-DXB-LAX (to have A380s right through), I opted against ORD because I would have had another 7-8 hours travel time (4.5 hours flying plus a buffer) while LAX had more travel time and was pricing at two separate legs as the total distance was over 15,000 miles (SYD-DXB-SEA was 14906 miles

).