Thanks to some good advice from members of this forum, I altered my RTW slightly and this is what i have come up with and will be booking in the next week or so.

I will be doing it in C so all very exciting

AKL-lax-LAS-sfo-JFK-zrh-FCO-zrh-LHR-zrh-DXB-bkk-MEL-AKL

A few points i noted:

* I get to try the NZ biz which gets great reviews. Just on that, which seats are best for couples?
Am I best going to the nose of the 747 as I see seats a close together at the front but dont have overhead luggage space.

* Get to try the new LX biz class on two routes JFK-ZRH and ZRH - DXB

* Routing back from DXB to MEL kind of restricted me to BKK because of the miles and I am not keen on paying surcharges to SQ. Anyway i get to fly on a TG A340 which would be nice.

I was tempted to look at this RTW in F but it misses too many legs to justify the extra cost IMO. AKL-LAX and BKK-MEL would both be J. Two of the biggest legs.

I note I still have 1263 miles and 3 stops to play with but as its a honeymoon and not a RTW for the sake of, I cant really fit too many more stops in.
Maybe a small hop intra Europe would be doable but not sure where from LHR?

Also looked at routing back from BKK to SIN and then maybe splurge on an A380 ( surcharge I know but yet to fly on one) but the 29k miles kills me just.

So any last thoughts would be much appreciated.